Puncture fire extinguishing device for power battery pack of new energy automobile

Abstract

The invention discloses a new energy automobile power battery pack puncturing fire extinguishing device, and relates to the technical field of fire fighting, the new energy automobile power battery pack puncturing fire extinguishing device comprises a supporting base, a first puncturing assembly and a second puncturing assembly, the supporting base comprises a bearing seat, moving wheels are installed at the front and back positions of the two sides of the bearing seat, and a lifting mechanism is fixedly installed at the top of the front end of the bearing seat; a base clamping mechanism is mounted at the top end of the lifting mechanism, a supporting arm is fixedly mounted at the top of the rear end of the bearing seat, a control rod and a control panel are fixedly connected to the top end of the supporting arm, and an air pump mechanism is mounted in the middle of the bearing seat. Two sets of differentiated puncture tools including the first puncture assembly and the second puncture assembly are arranged, and two bearing mechanisms including the supporting base and the handheld mounting base are matched, so that a modular system capable of being flexibly combined is formed; aiming at different battery pack structures, the scheme of air hammer puncturing or pneumatic hammer drilling can be selected; the supporting base is suitable for fire extinguishing at a fixed position at the bottom of a truck, and the handheld mounting base can extend to complex areas such as a large truck head.

Description

Technical Field

[0001] This invention relates to the field of fire protection technology, and more specifically to a puncture extinguishing device for a power battery pack of a new energy vehicle. Background Technology

[0002] With the rapid development of new energy vehicles, the fire safety requirements for power batteries, as core energy units, are becoming increasingly prominent. However, existing technologies face significant shortcomings in addressing fires involving the battery packs at the bottom of new energy vehicles:

[0003] Existing fire extinguishing devices for new energy vehicle power batteries mostly adopt a single puncture tool or fixed structure design, which cannot flexibly switch the puncture method according to the thickness of the battery pack protective layer (such as ordinary shell, chassis with protective plate) and vehicle type (passenger car / commercial vehicle); and lacks redundancy design. When the puncture component fails due to blockage or damage, it cannot quickly switch to a backup tool, resulting in a high risk of fire extinguishing failure.

[0004] Traditional fire extinguishing devices rely solely on puncture and demolition or a single spray path (such as a high-pressure nozzle directly facing the fire source), failing to achieve simultaneous and coordinated puncture and injection. After puncture, additional extinguishing agent injection is required, resulting in a delay in extinguishing (heat accumulates and diffuses to adjacent modules).

[0005] Existing piping systems rely on threaded connections or flange fixation, which takes a long time to assemble, and faulty parts need to be completely disassembled and replaced, resulting in long downtime for maintenance. Although some handheld fire extinguishers are lightweight, they lack a quick-compatibility interface with vehicle-mounted systems, making hot-swappable operations impossible and severely restricting emergency response efficiency.

[0006] Therefore, it is necessary to propose a puncture extinguishing device for power battery packs of new energy vehicles to solve the above problems. Summary of the Invention

[0007] (a) Technical problems to be solved

[0008] The purpose of this invention is to address the problems of existing devices lacking modular design, being unable to adapt to different battery structures and cope with faults, and relying solely on a single puncture or spray method, resulting in delayed fire extinguishing and insufficient coverage. This invention provides a puncture fire extinguishing device for power battery packs in new energy vehicles.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0011] A puncture-resistant fire extinguishing device for a power battery pack of a new energy vehicle includes a support base, a first puncture component, a second puncture component, and a handheld mounting base. The support base includes a carrier seat, with casters installed on both sides at the front and rear positions. A lifting mechanism is fixedly installed at the top front end of the carrier seat. A base locking mechanism is installed at the top end of the lifting mechanism. A support arm is fixedly installed at the top rear end of the carrier seat. A control rod and a control panel are fixedly connected to the top end of the support arm. A battery is installed inside the carrier seat. An air pump mechanism is installed in the middle of the carrier seat. The exhaust port of the air pump mechanism is connected to an air supply hose, and the end of the air supply hose is connected to an air supply pipe female connector.

[0012] The first puncture assembly includes a pneumatic hammer body. A pneumatic hammer locking mechanism is fixedly connected to the bottom of the pneumatic hammer body. A first air supply pipe male connector is connected to the air inlet of the pneumatic hammer body. A main guide pipe is fixedly connected to a plate on the pneumatic hammer output shaft at the top of the pneumatic hammer body. A puncture cone is fixedly connected to the top of the main guide pipe. An infusion channel communicating with the main guide pipe is opened in the middle of the puncture cone. A first transmission pipe is connected to one side of the main guide pipe. A first pipe locking mechanism is fixedly connected to the end of the first transmission pipe. Both the pneumatic hammer locking mechanism and the base locking mechanism are based on the same principle as fire hose locking, but are larger in size. Quick assembly and disassembly can be completed with a simple insertion and rotation. The pneumatic hammer locking mechanism is compatible with and locks into the base locking mechanism. The first air supply pipe male connector is compatible with and locks into the air supply pipe female connector. The first air supply pipe male connector and the air supply pipe female connector are C-type quick-release air hose connectors. The first pipe locking mechanism is based on the same principle as fire hose locking. The first pipe locking mechanism is compatible with the connectors of fire hoses.

[0013] By adopting the above technical solution, the first piercing component is installed on the base clamping mechanism of the support base using the air hammer clamping mechanism. Then, the female connector of the air supply pipe on the air pump mechanism is clamped to the male connector of the first air supply pipe on the air hammer body, and the external fire hose is clamped to the first pipe clamping mechanism through the clamping connector. At this time, the control lever is held to push the support base, and the device is pushed to the position corresponding to the battery under the chassis of the new energy vehicle using the moving wheels. After finding the fire source, the air pump mechanism is operated through the control panel. The air pump mechanism inputs gas into the air hammer body, and the air hammer body drives the hollow piercing cone at the end to pierce the battery shell. At the same time, the fire extinguishing material is introduced into the fire hose. The fire extinguishing material is transmitted to the infusion channel through the first transmission pipe and the main transmission pipe. When the battery shell is pierced, the fire extinguishing material enters the battery pack through the infusion channel to extinguish the fire.

[0014] The invention is further configured such that the lifting mechanism is a hydraulic cylinder and is controlled by a control panel.

[0015] By adopting the above technical solution, the lifting mechanism is used to adjust the height of the first puncture component or the second puncture component.

[0016] The present invention is further configured such that: a thermal sensor is fixedly installed at the top center of the support base, and a display screen is provided on the surface of the control panel.

[0017] By adopting the above technical solution, the location of the fire source can be detected using a thermal sensor, and a thermal map can be displayed on the screen.

[0018] The present invention is further configured such that: the second piercing assembly includes a blower body, the bottom end of which is fixedly connected to a blower locking mechanism; the air inlet of the blower body is connected to a second air supply pipe male connector; a piercing drill bit is fixedly connected to a plate on the output shaft at the top of the blower body; an annular water pipe is fixedly connected to the top of the blower body via a support frame; a high-pressure nozzle is connected to the surface of the annular water pipe; the high-pressure nozzle is inclined inward, and the confluence point of the fire extinguishing material sprayed from multiple high-pressure nozzles is located directly above the piercing drill bit; the annular water pipe... One side of the water pipe is connected to a second transmission pipe, and the end of the second transmission pipe is fixedly connected to a second pipe clamping mechanism; the male connector of the second air supply pipe is adapted to and clamps the female connector of the air supply pipe; the male connector of the second air supply pipe and the female connector of the air supply pipe are C-type quick-release air pipe connectors; the second pipe clamping mechanism is consistent with the clamping principle of fire hose, such as a quick connector of model KD; the second pipe clamping mechanism can be adapted to the connector of the fire hose; the clamping mechanism of the air monitor is consistent with the clamping principle of the fire hose; the clamping mechanism of the air monitor is adapted to and clamps the base clamping mechanism.

[0019] By adopting the above technical solution, in order to prevent the piercing cone of the first piercing component from failing to pierce the chassis of the new energy vehicle with a protective plate, thus hindering in-depth fire extinguishing, this embodiment includes a second piercing component. Unlike the first piercing component, the second piercing component primarily utilizes the air cannon body to drive the piercing drill bit to rotate at high speed, piercing the new energy vehicle with a protective plate at the bottom. After the piercing drill bit pierces the protective plate and battery casing, a high-pressure nozzle connected to the top of the annular water pipe sprays fire extinguishing material into the piercing hole to achieve in-depth fire extinguishing. During the piercing process, the second piercing component's up-and-down movement is controlled by a lifting mechanism.

[0020] The present invention is further configured such that the bottom of the second puncture component is provided with the same snap-fit ​​mechanism as the bottom of the first puncture component.

[0021] By adopting the above technical solution, rapid switching between the second puncture component and the first puncture component can be achieved. Since both the pneumatic hammer and the pneumatic drill require gas to operate, the second puncture component is also equipped with a second air supply pipe male connector of the same model as the first air supply pipe male connector, so as to realize the rapid disassembly and assembly of the puncture component and the puncture power source air pump mechanism, and thus flexibly select the puncture component according to the scenario.

[0022] The present invention is further configured such that: a fixing rod is fixedly connected to one side of the handheld mounting base, a handheld part locking mechanism is fixedly connected to the edge of the handheld mounting base, and handles are fixedly connected to both ends of the fixing rod, the handles being made of rubber.

[0023] By adopting the above technical solution, and by setting a handheld mounting base, the handheld part of the handheld mounting base has the same size and model as the base mounting mechanism on the support base, which is used to quickly install the first puncture component or the second puncture component. The purpose is that the power battery of some large trucks is installed at the rear of the front of the vehicle, and it is difficult to puncture with the support base. At this time, the puncture component can be quickly replaced on the handheld mounting base, and the operator can puncture the battery by holding the handle.

[0024] The present invention is further configured such that: the top ends of the main pipe and the annular water pipe are both fixedly connected with splash guards; the splash guards are in the shape of a trumpet.

[0025] By adopting the above technical solution, a physical isolation barrier is formed by setting splash guards on both puncture components; this prevents secondary short circuits caused by electrolyte splashing during puncture; it also suppresses the spread of fire extinguishing materials and reduces the impact on surrounding equipment.

[0026] (III) Beneficial Effects

[0027] The beneficial effects of this invention are as follows:

[0028] 1. This invention forms a modular system that can be flexibly combined by setting up two sets of differentiated puncture tools, namely a first puncture component and a second puncture component, together with two sets of supporting mechanisms, namely a support base and a handheld mounting base. For different battery pack structures, a solution of air hammer puncture or pneumatic drill can be selected. The support base is suitable for fire extinguishing in fixed positions at the bottom of the vehicle, while the handheld mounting base can be extended to complex areas such as the front of large trucks. The two components can serve as backups for each other, avoiding the risk of fire extinguishing failure due to the failure of a single tool.

[0029] 2. This invention constructs a dual-path synchronous fire extinguishing system of puncture and injection through the differentiated design of the first puncture component and the second puncture component, which is significantly different from the single-function mode of traditional fire extinguishing devices. The puncture cone of the first puncture component has a built-in infusion channel, which forms a closed passage with the main pipe. When the output shaft of the air hammer drives the puncture cone to puncture the battery shell, the fire extinguishing material is directly injected into the battery pack through the infusion channel. The fire extinguishing agent injection is started at the moment of puncture. After the air gun body of the second puncture component drives the puncture drill bit to rotate at high speed to break through the protective plate and shell, the annular water pipe is aimed at the puncture hole through the inwardly inclined high-pressure nozzle to realize the high-pressure water flow to disperse the combustion products.

[0030] 3. All functional modules of this invention adopt the same C-type quick-release air pipe connector and fire hose compatible snap-fit ​​mechanism to achieve rapid connection; compared with traditional threaded connection or flange, the assembly time is shortened and the single fire extinguishing response speed is improved. Attached Figure Description

[0031] Figure 1 This is a three-dimensional schematic diagram of the battery pack puncture extinguishing device of the present invention;

[0032] Figure 2 This is a three-dimensional schematic diagram of the support base structure of the present invention;

[0033] Figure 3 This is a first perspective view of the first puncture component of the present invention;

[0034] Figure 4 This is a second perspective view of the first puncture component of the present invention;

[0035] Figure 5 This is a first perspective view of the second puncture component of the present invention;

[0036] Figure 6 This is a second perspective schematic diagram of the second puncture component of the present invention;

[0037] Figure 7 This is a first perspective view of the handheld mounting base structure of the present invention;

[0038] Figure 8 This is a second perspective view of the handheld mounting base structure of the present invention.

[0039] Reference numerals: 10. Support base; 11. Bearing seat; 12. Casters; 13. Lifting mechanism; 14. Base locking mechanism; 15. Support arm; 16. Control lever; 17. Control panel; 18. Air pump mechanism; 181. Air supply hose; 182. Female air supply hose connector; 19. Thermal sensor; 20. First puncture assembly; 21. Air hammer body; 22. Air hammer locking mechanism; 23. Male first air supply hose connector; 24. Air hammer output shaft; 25. Main guide tube; 26. Penetration... 27. Piercing cone; 28. Infusion channel; 29. ​​First transmission pipe; 30. First pipe clamping mechanism; 31. Second puncture assembly; 32. Air gun body; 33. Air gun clamping mechanism; 34. Second gas supply pipe male connector; 35. Piercing drill bit; 36. Annular water pipe; 37. High-pressure nozzle; 38. Support frame; 49. Second transmission pipe; 40. Second pipe clamping mechanism; 41. Handheld mounting base; 42. Fixing rod; 43. Hand grip; 44. Handheld clamping mechanism; 45. Splash guard. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0041] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this invention according to the specific circumstances.

[0043] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0044] Example 1

[0045] Please see Figure 1 and Figure 2 A puncture extinguishing device for a power battery pack of a new energy vehicle includes a support base 10 and a first puncture component 20. The support base 10 includes a carrier 11, with movable wheels 12 installed on both sides and at the front and rear positions of the carrier 11. A lifting mechanism 13 is fixedly installed on the top front end of the carrier 11. The lifting mechanism 13 is a hydraulic cylinder and is controlled by a control panel 17. The lifting mechanism 13 is used to adjust the height of the first puncture component 20 or the second puncture component 30.

[0046] The top of the lifting mechanism 13 is equipped with a base locking mechanism 14, and the top of the rear end of the bearing seat 11 is fixedly equipped with a support arm 15. The top of the support arm 15 is fixedly connected with a control rod 16 and a control panel 17. The surface of the control panel 17 is equipped with a display screen.

[0047] An air pump mechanism 18 is installed in the middle of the bearing seat 11. The exhaust port of the air pump mechanism 18 is connected to an air supply hose 181, and the end of the air supply hose 181 is connected to an air supply pipe female connector 182.

[0048] A thermal sensor 19 is fixedly installed at the top center of the support base 11; a storage battery is installed inside the support base 11; the storage battery is used to power the lifting mechanism 13, the air pump mechanism 18, the thermal sensor 19 and the control panel 17.

[0049] The first puncture assembly 20 includes a pneumatic hammer body 21. A pneumatic hammer clamping mechanism 22 is fixedly connected to the bottom end of the pneumatic hammer body 21. A first air supply pipe male connector 23 is connected to the air inlet of the pneumatic hammer body 21. A main guide pipe 25 is fixedly connected to a plate on the pneumatic hammer output shaft 24 at the top of the pneumatic hammer body 21. A puncture cone 26 is fixedly connected to the top end of the main guide pipe 25. The surface of the puncture cone 26 is coated with a tungsten alloy composite coating, with a temperature resistance of up to 1200℃. The main guide pipe 25 is equipped with a rupture membrane protection device to prevent pipeline overload. An infusion channel 27 communicating with the main guide pipe 25 is opened in the middle of the puncture cone 26. A first transmission pipe 28 is connected to one side of the main guide pipe 25. The end of pipe 28 is fixedly connected to a first pipe clamping mechanism 29; the pneumatic hammer clamping mechanism 22 and the base clamping mechanism 14 are both consistent with the clamping principle of fire hoses, such as a quick connector of model KD61, but the size is too large; quick disassembly and assembly can be completed with just one insertion and one turn; the pneumatic hammer clamping mechanism 22 is compatible with and clamps the base clamping mechanism 14; the first air supply pipe male connector 23 is compatible with and clamps the air supply pipe female connector 182; the first air supply pipe male connector 23 and the air supply pipe female connector 182 are C-type quick-release air pipe connectors; the first pipe clamping mechanism 29 is consistent with the clamping principle of fire hoses; the first pipe clamping mechanism 29 can be compatible with the connectors of fire hoses;

[0050] In this embodiment, the first piercing component 20 is installed on the base clamping mechanism 14 of the support base 10 by using the air hammer clamping mechanism 22, and then the female air supply pipe connector 182 on the air pump mechanism 18 is clamped to the first air supply pipe male connector 23 on the air hammer body 21, and the external fire hose is clamped to the first pipe clamping mechanism 29 through the clamping connector.

[0051] At this time, hold the control lever 16 to push the support base 10, and use the moving wheels 12 to push the device to the part under the chassis of the new energy vehicle corresponding to the battery; then use the thermal sensor 19 to detect the fire source, and the thermal map can be displayed on the screen; after finding the fire source, operate the air pump mechanism 18 through the control panel 17. The air pump mechanism 18 inputs gas into the air hammer body 21, and the air hammer body 21 drives the hollow piercing cone 26 at the end to pierce the battery shell. At the same time, the fire extinguishing material is introduced into the fire hose. The fire extinguishing material is transmitted to the infusion channel 27 through the first transmission pipe 28 and the main pipe 25. When the battery shell is pierced, the fire extinguishing material enters the battery pack through the infusion channel 27 to extinguish the fire.

[0052] This invention enables thorough fire suppression of the battery pack at the bottom of new energy vehicles; it first locates the fire source, then penetrates the pack, and brings the fire extinguishing material to the fire source, achieving efficient fire suppression.

[0053] Example 2

[0054] Please see Figure 2 , Figure 5 and Figure 6 This embodiment is a further optimization based on Embodiment 1. Specifically, the new energy vehicle power battery pack puncture fire extinguishing device further includes a second puncture component 30. The second puncture component 30 includes a blower body 31, with a blower clamping mechanism 32 fixedly connected to the bottom end of the blower body 31. The air inlet of the blower body 31 is connected to a second air supply pipe male connector 33. A puncture drill bit 34 is fixedly connected to a plate on the output shaft at the top of the blower body 31. An annular water pipe 35 is fixedly connected to the top of the blower body 31 via a support frame 37. A high-pressure nozzle 36 is connected to the surface of the annular water pipe 35. The high-pressure nozzle 36 is inclined inward, and the confluence point of the fire extinguishing materials sprayed from multiple high-pressure nozzles 36 is located directly above the puncture drill bit 34. On one side of the annular water pipe 35, a second transmission pipe 38 is connected, and the end of the second transmission pipe 38 is fixedly connected to a second pipe clamping mechanism 39; the second air supply pipe male connector 33 is adapted to and clamped with the air supply pipe female connector 182; the second air supply pipe male connector 33 and the air supply pipe female connector 182 are C-type quick-release air pipe connectors; the second pipe clamping mechanism 39 has the same clamping principle as the fire hose, such as a quick connector of model KD61; the second pipe clamping mechanism 39 can be adapted to the connector of the fire hose; the air cannon clamping mechanism 32 has the same clamping principle as the fire hose, such as a quick connector of model KD61, but the size is larger; the air cannon clamping mechanism 32 is adapted to and clamped with the base clamping mechanism 14.

[0055] To achieve seamless switching between the second puncture component 30 and the first puncture component 20, this embodiment features the same snap-fit ​​mechanism at the bottom of both. This standardized interface design not only simplifies the installation process but also significantly improves work efficiency. Operators can quickly replace the component simply by removing it from the base and inserting it into the position of the other component. Furthermore, considering that both the pneumatic hammer and the pneumatic drill require gas as a power source, the second puncture component 30 is specifically equipped with a second gas supply pipe male connector 33 of the same model as the first gas supply pipe male connector 23. This allows for easy connection to the air pump mechanism 18 whether using a pneumatic hammer or a pneumatic drill, enabling rapid assembly and disassembly between the puncture component and the power source.

[0056] This flexible design allows the entire fire suppression system to select the appropriate puncture component based on different fire scenarios and vehicle structural characteristics. For example, when facing a battery pack without protective plates, the first puncture component 20 can be used for rapid puncture; while when penetrating a robust protective plate is required, the system can quickly switch to the second puncture component 30. This high degree of adaptability and flexibility significantly improves the overall efficiency and success rate of fire suppression operations.

[0057] In summary, by introducing the second puncture component 30 and its supporting rapid switching mechanism and standardized interface design, this embodiment provides a more reliable and efficient solution for fire emergency handling of power battery packs for new energy vehicles. It can not only effectively overcome the limitations of traditional single puncture methods in complex working conditions, but also greatly shorten the response time and improve fire extinguishing efficiency, providing strong support for protecting people's lives and property.

[0058] Example 3

[0059] Please see Figure 7 and Figure 8 This embodiment is a further optimization based on embodiment 1. Specifically, the new energy vehicle power battery pack puncture fire extinguishing device also includes a handheld mounting base 40. A fixing rod 41 is fixedly connected to one side of the handheld mounting base 40. A handheld part locking mechanism 43 is fixedly connected to the edge of the handheld mounting base 40. Handles 42 are fixedly connected to both ends of the fixing rod 41. The handles 42 are made of rubber and have anti-slip textures on the surface.

[0060] In this embodiment, a handheld mounting base 40 is provided. The handheld part locking mechanism 43 of the handheld mounting base 40 is the same size and model as the base locking mechanism 14 on the support base 10. This is used to quickly install the first puncture component 20 or the second puncture component 30. The purpose is that the power batteries of some large trucks are installed at the rear of the front of the vehicle, and it is difficult to puncture them using the support base 10. In this case, the puncture component can be quickly replaced on the handheld mounting base 40, and the operator can puncture the battery by holding the handle 42.

[0061] This invention innovatively incorporates dual puncture components (first puncture component 20 and second puncture component 30) and a matching dual load-bearing mechanism (support base 10 and handheld mounting base 40), and employs a standardized quick-connect snap-fit ​​mechanism to construct a highly modular and scenario-adaptive power battery fire extinguishing system. This groundbreaking design not only achieves multi-scenario adaptability of the fire extinguishing equipment but also elevates the equipment's response speed to a new level through standardized interface technology, providing a systematic solution for emergency response to fires involving new energy vehicles.

[0062] The device features a reconfigurable architecture consisting of a "puncture component + support platform." The first puncture component 20 employs a pneumatic impact principle, with its air hammer body 21 hydraulically driven to achieve high-energy puncture action, working in conjunction with fire hoses to deliver solid extinguishing agents. The second puncture component 30 introduces rotary demolition technology, utilizing the air hammer body 31 to drive a multi-bladed puncture drill bit 34 for high-speed rotary cutting, specifically designed for new energy vehicle chassis with high-strength protective plates. The two puncture methods complement each other: the former is suitable for puncturing conventional battery packs, while the latter can effectively break through the secondary protective layer formed by composite material protective plates.

[0063] The support base 10 is equipped with casters 12 and a lifting hydraulic cylinder, making it suitable for batch operations in fixed locations; the handheld mounting base 40 integrates an ergonomic handle 42 and a quick-installation interface, specifically developed for special scenarios such as high-altitude operations and confined spaces. The two mechanisms can be seamlessly switched through a standardized interface, allowing operators to reconfigure the equipment within 60 seconds according to site conditions.

[0064] All connections utilize C-type quick-release air hose connectors (referencing KD61 standard) and fire hose clamps, a design that brings multiple technical benefits. First, parameterized interfaces eliminate compatibility barriers between different components, shortening the connection time between the piercing assembly and the power source and support platform. Second, standardized production reduces maintenance costs, and the failure rate of individual interface modules is lower than that of traditional threaded connections. More importantly, this "plug-and-play" mechanism allows the equipment to be dynamically reconfigured according to changes in the fire scene; for example, in complex fire situations, dual piercing assemblies can be activated simultaneously for cross-fire suppression.

[0065] Example 4

[0066] Please see Figures 3 to 6 This embodiment is a further optimization based on embodiment 2. Specifically, the top ends of the main pipe 25 and the annular water pipe 35 are both fixedly connected to a splash guard 44; the splash guard 44 is trumpet-shaped.

[0067] In this embodiment, a physical isolation barrier is formed by providing splash guards 44 on both puncture components. This prevents secondary short circuits caused by electrolyte splashing during puncture and suppresses the spread of fire extinguishing material, reducing the impact on surrounding equipment.

[0068] In summary, this invention, by setting up two differentiated puncture tools—a first puncture component 20 (pneumatic hammer) and a second puncture component 30 (pneumatic cannon)—and combining them with two load-bearing mechanisms—a support base 10 (vehicle-mounted mobile type) and a handheld mounting base 40 (portable type)—forms a modular system that can be flexibly combined. For different battery pack structures (such as ordinary casings / chassis with protective plates), a combination of pneumatic hammer puncture or pneumatic cannon drilling and high-pressure water spray can be selected. The support base 10 is suitable for fire extinguishing in fixed locations under vehicles, while the handheld mounting base 40 can extend to complex areas such as the front of large trucks. The two components can serve as backups for each other, avoiding the risk of fire extinguishing failure due to the failure of a single tool.

[0069] This invention constructs a dual-path synchronous fire extinguishing system of puncture and injection through the differentiated design of the first puncture component 20 and the second puncture component 30, significantly different from the single-function mode of traditional fire extinguishing devices. The puncture cone 26 of the first puncture component 20 has a built-in infusion channel 27, forming a closed passage with the main guide tube 25. When the air hammer output shaft 24 drives the puncture cone 26 to puncture the battery casing, the fire extinguishing material is directly injected into the battery pack through the infusion channel 27; the fire extinguishing agent injection is initiated at the moment of puncture, blocking the chain reaction caused by heat accumulation; the infusion channel 27 coincides with the puncture path, ensuring that the fire extinguishing agent accurately covers the burning area; the mechanical stress generated by the air hammer impact and the chemical inhibition effect of the fire extinguishing agent are superimposed, accelerating the extinguishing of the fire.

[0070] After the main body 31 of the second piercing assembly 30 drives the piercing drill bit 34 to rotate at high speed and break through the protective plate and outer shell, the annular water pipe 35 forms a three-dimensional water curtain through the inwardly inclined high-pressure nozzle 36. The confluence of multiple nozzles is precisely aligned with the piercing hole, so that the high-pressure water flow can disperse the combustion products and block the oxygen supply; the dense water mist can quickly absorb heat and reduce the temperature of the fire scene to below the ignition point; and the continuous spraying can cover the smoldering area that has not been completely extinguished to prevent reignition.

[0071] All functional modules use the same C-type quick-release air hose connector (KD61 derivative specification) and fire hose compatible snap-fit ​​mechanism to achieve a quick one-plug-one-turn connection. Compared with traditional threaded connections or flanges, assembly time is shortened and the single fire extinguishing response speed is improved; the piping system supports hot-swappable replacement, and faulty parts can be replaced immediately, reducing equipment downtime; if new components are added (such as the third puncture unit), the existing interface system can be directly reused, reducing system iteration costs.

[0072] A horn-shaped splash guard 44 is added to the ends of the main water pipe 25 and the annular water pipe 35 to form a physical isolation barrier. This prevents secondary short circuits caused by electrolyte splashing during the puncture process; it also suppresses the spread of fire extinguishing materials and reduces the impact on surrounding equipment.

[0073] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A puncture extinguishing device for a power battery pack of a new energy vehicle, comprising a support base (10), a first puncture component (20), a second puncture component (30), and a handheld mounting base (40), characterized in that: The support base (10) includes a bearing seat (11), and the bearing seat (11) is equipped with movable wheels (12) on both sides and at the front and rear positions. A lifting mechanism (13) is fixedly installed on the top front end of the bearing seat (11). The top of the lifting mechanism (13) is equipped with a base locking mechanism (14), and the top of the rear end of the bearing seat (11) is fixedly equipped with a support arm (15). The top of the support arm (15) is fixedly connected with a control rod (16) and a control panel (17). The surface of the control panel (17) is provided with a display screen. The first puncture assembly (20) includes a pneumatic hammer body (21), a pneumatic hammer clamping mechanism (22) is fixedly connected to the bottom end of the pneumatic hammer body (21), a main guide tube (25) is fixedly connected to the pneumatic hammer output shaft (24) at the top end of the pneumatic hammer body (21), and a puncture cone (26) is fixedly connected to the top end of the main guide tube (25). The second puncture assembly (30) includes a blower body (31), the bottom end of which is fixedly connected to a blower clamping mechanism (32), the air inlet of which is connected to a second air supply pipe male connector (33), and the output shaft at the top of the blower body (31) is fixedly connected to a puncture drill bit (34).

2. The puncture extinguishing device for a new energy vehicle power battery pack according to claim 1, characterized in that: A thermal sensor (19) is fixedly installed at the top center of the support base (11); a storage battery is installed inside the support base (11); the storage battery is used to power the lifting mechanism (13), the air pump mechanism (18), the thermal sensor (19) and the control panel (17).

3. The puncture extinguishing device for a new energy vehicle power battery pack according to claim 1, characterized in that: An air pump mechanism (18) is installed in the middle of the bearing seat (11). The exhaust port of the air pump mechanism (18) is connected to an air supply hose (181), and the end of the air supply hose (181) is connected to an air supply pipe female connector (182).

4. A puncture extinguishing device for a new energy vehicle power battery pack according to claim 3, characterized in that: The air inlet of the air hammer body (21) is connected to a first air delivery pipe male connector (23). The middle part of the puncture cone (26) is provided with an infusion channel (27) connected to the main pipe (25). One side of the main pipe (25) is connected to a first transmission pipe (28). The end of the first transmission pipe (28) is fixedly connected to a first pipe clamping mechanism (29). The air hammer clamping mechanism (22) is adapted to and clamped with the base clamping mechanism (14).

5. A puncture extinguishing device for a new energy vehicle power battery pack according to claim 3, characterized in that: A ring-shaped water pipe (35) is fixedly connected to the upper part of the air gun body (31) via a support frame (37). A high-pressure nozzle (36) is connected to the surface of the ring-shaped water pipe (35). The high-pressure nozzle (36) is inclined inward. A second transmission pipe (38) is connected to one side of the ring-shaped water pipe (35). A second pipe clamping mechanism (39) is fixedly connected to the end of the second transmission pipe (38). The male connector (33) of the second air supply pipe is adapted to and clamped to the female connector (182) of the air supply pipe.

6. A puncture extinguishing device for a new energy vehicle power battery pack according to claim 5, characterized in that: The top ends of the main pipe (25) and the annular water pipe (35) are both fixedly connected to splash guards (44), which are in the shape of a trumpet.

7. A puncture extinguishing device for a new energy vehicle power battery pack according to claim 1, characterized in that: A fixing rod (41) is fixedly connected to one side of the handheld mounting base (40), and a handheld part locking mechanism (43) is fixedly connected to the edge of the handheld mounting base (40). A handle (42) is fixedly connected to both ends of the fixing rod (41), and the handle (42) is made of rubber.

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