Soaking type electric automobile fire extinguishing device

Abstract

The utility model relates to a soaking type electric automobile fire extinguishing device, which relates to the technical field of new energy automobile fire extinguishing devices, and comprises a water storage fence, the water storage fence covers the periphery of an automobile body, and a fire extinguishing space for storing water is formed between the water storage fence and the automobile body. When the battery pack is on fire, the water storage fence encloses and covers the periphery of the vehicle body, then fire-fighting water is sprayed into the fire extinguishing space to extinguish open fire, and the fire-fighting water is blocked by the water storage fence and then is accumulated in the fire extinguishing space, so that water immersion type fire extinguishing of the battery pack is realized; and the fire fighting water cools the battery pack and blocks heat diffusion, so that vehicle re-combustion caused by secondary thermal runaway of the power battery is avoided, and the fire extinguishing effect on the electric vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle fire extinguishing devices, in particular to an immersion type electric vehicle fire extinguishing device. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source (or use conventional automotive fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures; new energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc.

[0003] Since the power source of electric vehicles is mostly battery packs, once the heat generated by the battery packs during operation accumulates and exceeds a certain temperature, it will trigger thermal runaway, causing the electric vehicle to catch fire. Due to the sealing characteristics of the power battery pack, power battery fire / thermal runaway is difficult to suppress.

[0004] At present, the main way to extinguish fires in electric vehicles and power batteries is to use a high-pressure water gun to continuously spray water. However, it is difficult for high-pressure water to directly impact the power battery, and it is difficult for water to enter the inside of the power battery, and it is impossible to effectively cool and extinguish the fire source inside the power battery, resulting in poor fire extinguishing effect and a large amount of fire water wasted. In addition, due to the electrochemical characteristics of the power battery, if it cannot be continuously immersed in water, the electric vehicle is prone to reignite, thereby reducing the fire extinguishing effect of the electric vehicle. Utility Model Content

[0005] In order to improve the fire extinguishing effect on electric vehicles, the utility model provides a water-immersed electric vehicle fire extinguishing device.

[0006] The present application provides a water-immersed electric vehicle fire extinguishing device, which adopts the following technical solution:

[0007] A water-immersed electric vehicle fire extinguishing device comprises a water storage fence, wherein the water storage fence is arranged around the vehicle body, and a fire extinguishing space for storing water is formed between the water storage fence and the vehicle body.

[0008] By adopting the above technical solution, when a fire occurs in the battery pack, a water storage fence enclosure is set around the vehicle body, and then fire-fighting water is sprayed into the fire-fighting space to extinguish the open fire. The fire-fighting water is blocked by the water storage fence and accumulated in the fire-fighting space, thereby realizing immersion fire extinguishing of the battery pack. Since the battery pack is immersed in the fire-fighting space, the fire-fighting water cools the battery pack and blocks heat diffusion, thereby avoiding the vehicle from reigniting due to thermal runaway of the power battery, thereby improving the fire-fighting effect of the electric vehicle.

[0009] Optionally, a sealing groove is provided at the bottom of the water storage fence, and the sealing groove is arranged around the fire extinguishing space. A sealing ring is provided in the sealing groove, and when the water storage fence cover is arranged around the vehicle body, the sealing ring is pressed against the ground.

[0010] By adopting the above technical solution, the sealing ring increases the sealing of the water storage fence, thereby reducing the probability of large-scale leakage of fire-fighting water, thereby improving the fire-fighting effect on electric vehicles.

[0011] Optionally, the water storage fence includes two first baffles and two second baffles spliced ​​together, the two first baffles are relatively arranged on the front and rear sides of the vehicle body, and the two second baffles are relatively arranged on the left and right sides of the vehicle body.

[0012] By adopting the above technical solution, when the water storage fence is needed, the two first baffles and the two second baffles are spliced ​​together, and when it is not needed, the first baffle and the second baffle are disassembled, thereby reducing the space occupied by the transportation and storage of the water storage fence and improving the convenience of storage and transportation of the water storage fence. At the same time, the damaged first baffle or second baffle can be replaced separately, thereby improving the convenience of using the water storage fence.

[0013] Optionally, the first baffle includes a first side plate and a first bottom plate that are integrally arranged together, the first side plate extends upward in a vertical direction, and the first bottom plate is located on a side of the first side plate close to the vehicle body and extends in a horizontal direction.

[0014] By adopting the above technical solution, the first side plate blocks the fire-fighting water, and the first bottom plate contacts the ground to increase the contact area with the ground, thereby increasing the bearing capacity of the first baffle plate for the fire-fighting water and improving the stability of the water storage fence, thereby improving the fire-fighting effect on the electric vehicle.

[0015] Optionally, the second baffle includes a second side panel and a second bottom panel integrally arranged together, the second side panel is located on the side of the vehicle body and extends upward in the vertical direction, the second bottom panel is located on the side of the second side panel close to the vehicle body and extends horizontally, when the first baffle and the second baffle are spliced, the second side panel is in contact with the first side panel, the second bottom panel is pressed against the first bottom panel, and the sealing ring is arranged on the first bottom panel and the second bottom panel.

[0016] By adopting the above technical solution, the second side plate blocks the fire-fighting water, the second bottom plate contacts the ground to increase the contact area with the ground, and at the same time, the second side plate is fitted with the first side plate, the second bottom plate is pressed against the first bottom plate, and the sealing ring is arranged on the first bottom plate and the second bottom plate, thereby increasing the sealing and stability of the water storage fence, thereby improving the fire extinguishing effect on the electric vehicle.

[0017] Optionally, the second side panel is bent inwardly near the side edge of the first side panel to form a connecting portion, and when the first baffle plate and the second baffle plate are spliced, the connecting portion is pressed against the first side panel, and the first side panel is provided with a fixing bolt for positioning the connecting portion.

[0018] By adopting the above technical solution, the connecting portion is pressed against the first side plate and positioned by fixing bolts, thereby increasing the sealing and stability of the water storage fence, thereby improving the fire extinguishing effect on the electric vehicle.

[0019] Optionally, a first slope extending downward and inward is provided on a side of the first bottom plate close to the vehicle body.

[0020] By adopting the above technical solution, fire-fighting water is sprayed onto the first inclined surface, and the fire-fighting water forms water gravity on the first inclined surface and presses down the first bottom plate, so that the sealing ring at the bottom of the first bottom plate is compacted and pressed against the ground, thereby improving the sealing of the first baffle to water, thereby improving the fire-fighting effect on the electric vehicle.

[0021] Optionally, the second bottom plate is provided with a second inclined surface extending downward and inward on the side close to the vehicle body.

[0022] By adopting the above technical solution, the fire-fighting water is sprayed onto the second inclined surface, and the fire-fighting water forms water gravity on the second inclined surface and presses down the second bottom plate, so that the sealing ring at the bottom of the second bottom plate is compacted and pressed against the ground, thereby improving the water sealing performance of the second baffle. The first baffle and the second baffle cooperate to block the fire-fighting water, thereby improving the fire-fighting effect on the electric vehicle.

[0023] Optionally, a fitting surface that fits with the second inclined surface is provided on a side of the first bottom plate close to the second inclined surface, and when the first bottom plate and the second bottom plate are spliced, the second inclined surface is tightly pressed against the fitting surface.

[0024] By adopting the above technical solution, the second baffle is pushed close to the first baffle, so that the second inclined surface and the fitting surface are pressed together, and at the same time the connecting part is pressed against the first side plate, and the fixing bolt is rotated for positioning. The second inclined surface and the fitting surface are pressed tightly, thereby improving the sealing and stability between the first baffle and the second baffle, thereby improving the fire extinguishing effect on the electric vehicle.

[0025] Optionally, the water storage fence is provided with hoisting holes for facilitating hoisting.

[0026] By adopting the above technical solution, the lifting holes are convenient for external lifting equipment, thereby improving the convenience of moving the water storage fence.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] When a battery pack catches fire, a water storage fence enclosure is installed around the vehicle body, and then firefighting water is sprayed into the fire extinguishing space to extinguish the open fire. The firefighting water is blocked by the water storage fence and accumulated in the fire extinguishing space, thereby realizing immersion fire extinguishing of the battery pack. Since the battery pack is immersed in the fire extinguishing space, the firefighting water cools the battery pack and blocks heat diffusion, thereby avoiding the vehicle re-ignition due to thermal runaway of the power battery, thereby improving the fire extinguishing effect of the electric vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of this application;

[0030] Figure 2 is an exploded view of the first baffle and the second baffle in the present application;

[0031] Figure 3 is a partial cross-sectional view of the second baffle in the present application;

[0032] Figure 4 It is a structural schematic diagram of the sealing groove in this application.

[0033] Figure numerals: 1. water storage fence; 11. vehicle body; 12. fire extinguishing space; 13. sealing groove; 14. sealing ring; 15. lifting hole; 2. first baffle; 21. first side panel; 22. first bottom panel; 23. fixing bolt; 24. first inclined surface; 25. fitting surface; 3. second baffle; 31. second side panel; 311. connecting part; 32. second bottom panel; 33. second inclined surface. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-4 This application is described in further detail.

[0035] The embodiment of the present application discloses a water-immersed electric vehicle fire extinguishing device.

[0036] Reference Figure 1 A water-immersed electric vehicle fire extinguishing device includes a water storage fence 1, which is arranged around a vehicle body 11, and a fire extinguishing space 12 for storing water is formed between the water storage fence 1 and the vehicle body 11.

[0037] Reference Figure 1 and Figure 2 The water storage fence 1 includes two first baffles 2 and two second baffles 3 spliced ​​together. The two first baffles 2 are relatively arranged on the front and rear sides of the vehicle body 11, and the two second baffles 3 are relatively arranged on the left and right sides of the vehicle body 11.

[0038] Reference Figure 1 and Figure 2The first baffle 2 includes a first side plate 21 and a first bottom plate 22 which are integrally arranged together. The first side plate 21 extends upward in the vertical direction. The length of the first side plate 21 is greater than the width of the vehicle body 11. The first bottom plate 22 is located on a side of the first side plate 21 close to the vehicle body 11 and extends in the horizontal direction. The lower surface of the first bottom plate 22 is pressed against the ground, and the length of the first bottom plate 22 is less than the length of the first side plate 21.

[0039] Reference Figure 1 and Figure 2 The second baffle plate 3 includes a second side plate 31 and a second bottom plate 32 that are integrally arranged together. The second side plate 31 is located at the side of the vehicle body 11 and extends upward in the vertical direction. The length of the second side plate 31 is greater than the length of the vehicle body 11. Both side edges of the second side plate 31 close to the first side plate 21 are bent inward to form a connecting portion 311. When the first baffle plate 2 and the second baffle plate 3 are spliced, the connecting portion 311 is pressed against the inner wall of the first side plate 21. A plurality of fixing bolts 23 are installed on the first side plate 21 at vertical intervals. The fixing bolts 23 are threadedly connected to the connecting portion 311 and are used to position the connecting portion 311.

[0040] Reference Figure 1 and Figure 2 The second bottom plate 32 is located on a side of the second side plate 31 close to the vehicle body 11 and extends in the horizontal direction. The projection of the second bottom plate 32 in the vertical direction is T-shaped, and the length of the second bottom plate 32 is consistent with the length of the second side plate 31.

[0041] Reference Figure 2 and Figure 3 When the first baffle 2 and the second baffle 3 are spliced, the side of the second bottom plate 32 close to the first bottom plate 22 is pressed against the first bottom plate 22, and the two opposite side walls of the second bottom plate 32 are pressed against the inner walls of the two first side plates 21 respectively; the side of the first bottom plate 22 close to the vehicle body 11 is provided with a first inclined surface 24 extending downward and inward, and the side of the second bottom plate 32 close to the vehicle body 11 is provided with a second inclined surface 33 extending downward and inward, and the side of the first bottom plate 22 close to the second inclined surface 33 is provided with a fitting surface 25 that fits with the second inclined surface 33. When the first bottom plate 22 and the second bottom plate 32 are spliced, the second inclined surface 33 is pressed against the fitting surface 25.

[0042] Reference Figure 1 , Figure 3 and Figure 4A sealing groove 13 is provided at the bottom of the water storage fence 1. The sealing groove 13 is located on the lower surfaces of the first bottom plate 22 and the second bottom plate 32 and is arranged around the fire extinguishing space 12. A sealing ring 14 is fixedly installed in the sealing groove 13. When the water storage fence 1 is covered around the vehicle body 11, the sealing ring 14 is pressed against the ground; in order to facilitate the lifting of the water storage fence 1, lifting holes 15 are successively provided on the top of the first side plate 21 and the second side plate 31; in the embodiment of the present application, the first baffle plate 2 and the second baffle plate 3 are both made of steel, and the sealing ring 14 is made of high temperature resistant material. In other embodiments, the water storage fence 1 and the sealing ring 14 can be made of common materials.

[0043] Reference Figure 1 and Figure 2 When the battery pack catches fire, first place the first baffle plate 2 at the front end of the vehicle body 11, then push the two second baffle plates 3 close to the first baffle plate 2, so that the fitting surface 25 is pressed against the second inclined surface 33, and the connecting portion 311 is pressed against the first side plate 21, and the connecting portion 311 is positioned by the fixing bolt 23, and finally splice another first baffle plate 2 so that the vehicle body 11 is located in the fire extinguishing space 12, and the water storage fence 1 can also be spliced ​​outside. After the splicing is completed, the external hoisting hole 15 is used to connect the water storage fence 1. The equipment hoists the water storage fence 1 as a whole to the burning vehicle, so that the vehicle body 11 is located in the fire extinguishing space 12, and then sprays fire-fighting water into the fire-fighting space 12 to extinguish the open fire. The fire-fighting water is blocked by the water storage fence 1 and accumulated in the fire-fighting space 12, thereby realizing immersion fire extinguishing of the battery pack. Since the battery pack is immersed in the fire extinguishing space 12, the fire-fighting water cools the battery pack and blocks heat diffusion, thereby avoiding the vehicle from reigniting due to thermal runaway of the power battery, thereby improving the fire extinguishing effect on the electric vehicle.

[0044] After the fire is extinguished, the accumulated fire-fighting water can be pumped out for other uses, thereby reducing the waste of fire-fighting water. Then, the first baffle 2 and the second baffle 3 are disassembled by reverse operation for separate transportation and storage, thereby improving the convenience of transportation and storage of the water storage fence 1.

[0045] The working principle of the embodiment of the present application is as follows:

[0046] First, place the first baffle plate 2 at the front end of the vehicle body 11, and then push the two second baffle plates 3 close to the first baffle plate 2, so that the fitting surface 25 is pressed against the second inclined surface 33, and at the same time, the connecting portion 311 is pressed against the first side plate 21, and the connecting portion 311 is positioned by the fixing bolts 23, and finally another first baffle plate 2 is spliced, so that the vehicle is located in the fire extinguishing space 12, and then fire-fighting water is sprayed into the fire-fighting space 12 to extinguish the open fire. The fire-fighting water is blocked by the water storage fence 1 and accumulated in the fire-fighting space 12, thereby realizing immersion fire extinguishing of the battery pack. Since the battery pack is immersed in the fire-fighting space 12, the fire-fighting water cools the battery pack and blocks heat diffusion, thereby avoiding the vehicle from reigniting due to thermal runaway of the power battery, thereby improving the fire extinguishing effect of the electric vehicle.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water-immersed electric vehicle fire extinguishing device, characterized in that: The invention comprises a water storage fence (1), wherein the water storage fence (1) is arranged around a vehicle body (11), and a fire extinguishing space (12) for storing water is formed between the water storage fence (1) and the vehicle body (11); a sealing groove (13) is provided at the bottom of the water storage fence (1), and the sealing groove (13) is arranged around the fire extinguishing space (12); a sealing ring (14) is arranged in the sealing groove (13); when the water storage fence (1) is arranged around the vehicle body (11), the sealing ring (14) is pressed against the ground; the water storage fence (1) comprises two first baffles (2) and two second baffles (3) spliced ​​together, wherein the two first baffles (2) are arranged relatively at the front and rear sides of the vehicle body (11), and the two second baffles (3) are arranged relatively at the left and right sides of the vehicle body (11).

2. The immersion type electric vehicle fire extinguishing device according to claim 1, characterized in that: The first baffle (2) comprises a first side plate (21) and a first bottom plate (22) which are integrally arranged together, the first side plate (21) extending upward in a vertical direction, and the first bottom plate (22) being located on a side of the first side plate (21) close to the vehicle body (11) and extending in a horizontal direction.

3. The submersible electric vehicle fire extinguishing device according to claim 2, characterized in that: The second baffle (3) comprises a second side plate (31) and a second bottom plate (32) which are integrally arranged together; the second side plate (31) is located at the side of the vehicle body (11) and extends upward in the vertical direction; the second bottom plate (32) is located at a side of the second side plate (31) close to the vehicle body (11) and extends horizontally; when the first baffle (2) and the second baffle (3) are spliced, the second side plate (31) fits the first side plate (21), and the second bottom plate (32) is pressed against the first bottom plate (22); the sealing ring (14) is arranged on the first bottom plate (22) and the second bottom plate (32).

4. The submersible electric vehicle fire extinguishing device according to claim 3, characterized in that: The second side plate (31) is bent inwardly at a side edge close to the first side plate (21) to form a connecting portion (311); when the first baffle plate (2) and the second baffle plate (3) are spliced, the connecting portion (311) is pressed against the first side plate (21); and a fixing bolt (23) for positioning the connecting portion (311) is provided on the first side plate (21).

5. The submersible electric vehicle fire extinguishing device according to claim 3, characterized in that: The first bottom plate (22) is provided with a first inclined surface (24) extending downward and inward on the side close to the vehicle body (11).

6. The submersible electric vehicle fire extinguishing device according to claim 5, characterized in that: The second bottom plate (32) is provided with a second inclined surface (33) extending downward and inward on the side close to the vehicle body (11).

7. The submersible electric vehicle fire extinguishing device according to claim 6, characterized in that: A fitting surface (25) fitted with the second inclined surface (33) is provided on the side of the first bottom plate (22) close to the second inclined surface (33); when the first bottom plate (22) and the second bottom plate (32) are spliced, the second inclined surface (33) and the fitting surface (25) are tightly pressed against each other.

8. The submersible electric vehicle fire extinguishing device according to claim 1, characterized in that: The water storage fence (1) is provided with a hoisting hole (15) for easy hoisting.

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