An electric vehicle fire extinguishing device

Abstract

The utility model relates to an electric automobile fire extinguishing device, including car bottom shower device and at least one set of fireproof partition, the main part of car bottom shower device is metal pipe frame, the axis direction of the upward side of metal pipe frame sets up a plurality of first spout for from below to upward water spray, the downward side of metal pipe frame is fixed with first wheel, the bottom of fireproof partition is fixed with second wheel, the metal pipe frame still is fixed with the horizontal quick -wired port of intercommunication with it, to connect fire -fighting water pipe with convenience, the utility model discloses a movable car bottom shower device and fireproof partition to realize the quick isolation of accident vehicle and surrounding vehicle and the directional fire extinguishing cooling of battery part, the car bottom shower device of the utility model adopts the pipe frame structure, and the simple structure is convenient to operate, through the telescopic moving rod, it can be pushed to the bottom of the vehicle on fire safely, the utility model adopts the fireproof partition of splicing to the quick isolation of accident vehicle, can effectively control the spread of fire.

Description

Technical Field

[0001] This utility model belongs to the technical field of fire extinguishing devices, and specifically relates to a fire extinguishing device for electric vehicles. Background Technology

[0002] When a lithium battery experiences thermal runaway, the positive electrode decomposes and releases oxygen (such as O2 released by ternary lithium batteries). No external combustion is required, and traditional methods of isolating oxygen (such as dry powder or carbon dioxide) become largely ineffective. The temperature of the runaway cell can reach 1800℃, and the heat spreads rapidly through the module structure, triggering a "domino effect."

[0003] Currently, there are two common external fire extinguishing methods. One is the dike immersion method: using flood control barriers to surround the vehicle to form a pool of water, which completely submerges the battery pack. The other is under-vehicle directional spraying: deploying high-pressure resistant metal pipes under the vehicle to spray water directly from below. This method also uses a variety of devices, such as the utility model patent with patent number 202320007958.8, publication number CN219251491 U, and patent name "An Electric Vehicle Battery Fire Extinguishing Device".

[0004] The advantage of the cofferdam immersion method is uniform cooling and a shorter extinguishing time of less than 30 minutes (compared to over an hour for traditional spraying). However, this method is limited by its reliance on large equipment and is difficult to operate in underground parking garages. The advantage of under-vehicle directional spraying is its ability to directly spray water to cool battery packs located under vehicles, providing good cooling without the need for large equipment. However, this method is limited by its inability to isolate the affected vehicle from other vehicles. In densely populated parking areas, if fire extinguishing and cooling are not timely enough, a battery explosion could cause surrounding vehicles to catch fire. Therefore, existing under-vehicle directional spraying fire extinguishing systems need to be improved. Utility Model Content

[0005] This utility model provides an electric vehicle fire extinguishing device to solve the technical problems existing in the prior art. It has a good effect on targeted fire extinguishing and cooling of the battery pack located under the vehicle, and can quickly isolate the accident vehicle from surrounding vehicles.

[0006] This utility model includes the following technical solution:

[0007] An electric vehicle fire extinguishing device includes an under-vehicle sprinkler system and at least one set of fireproof partitions; the main body of the under-vehicle sprinkler system is a metal pipe frame, and a plurality of first nozzles are provided along the axial direction of the upward side of the metal pipe frame for spraying water from bottom to top; a first wheel is fixedly mounted on the downward side of the metal pipe frame; a second wheel is fixedly mounted on the bottom of the fireproof partitions; and a horizontal quick-connect port connected to the metal pipe frame is also fixedly mounted thereto for connecting fire hoses.

[0008] Furthermore, the metal tube frame consists of a rectangular outer tube and several straight inner tubes, with the straight inner tubes connected to the rectangular outer tube and fixed by a tee joint.

[0009] Furthermore, the straight inner tube is parallel to the short side of the rectangular outer tube and perpendicular to the long side of the rectangular outer tube.

[0010] Furthermore, the horizontal quick-connect port is located at the middle of the short side on one side of the rectangular outer tube.

[0011] Furthermore, a movable rod is provided next to the horizontal quick-connect port, which is sleeved on the outside of the tube wall of the rectangular outer tube.

[0012] Furthermore, the movable rod is a telescopic rod and has a handle made of insulating and heat-resistant material at its end.

[0013] Furthermore, connecting rings are fixed on both the left and right sides of the fireproof partition, which can be used to quickly fix two adjacent fireproof partitions. This can be achieved by using nylon ropes, chains, or buckles.

[0014] Furthermore, a straight metal pipe with several second nozzles is fixedly installed on the top of the fireproof partition. The second nozzles are inclined downwards to quickly extinguish flames on the vehicle roof in some confined special areas, reducing the risk of injury to personnel engaged in firefighting.

[0015] Furthermore, both ends of the straight metal pipe are equipped with quick-connect fittings to facilitate connection to fire water pipes, another straight metal pipe, or plugs.

[0016] Furthermore, a U-shaped metal pipe is installed on the side of the fireproof partition facing the under-vehicle sprinkler device, and several open fire sprinkler heads are provided on the U-shaped metal pipe; a quick connector is provided at the middle connection of the U-shaped metal pipe for connecting fire water pipes.

[0017] The advantages and positive effects of this utility model are as follows:

[0018] This invention uses a movable under-vehicle spray device and fireproof partition to quickly isolate the accident vehicle from surrounding vehicles and to directionally extinguish and cool the battery area.

[0019] The under-vehicle spraying device of this utility model adopts a pipe frame structure, which is simple in structure and easy to operate; it can be safely pushed to the bottom of the burning vehicle through a telescopic movable rod.

[0020] This utility model uses a splicable fireproof partition to quickly isolate accident vehicles, which can effectively control the spread of fire; the top and sides of the fireproof partition can also be equipped with sprinkler devices to achieve rapid fire extinguishing from multiple angles. Attached Figure Description

[0021] Figure 1 This is a top view of the overall structure of Embodiment 1;

[0022] Figure 2 This is a front view schematic diagram of the fireproof partition in Example 1;

[0023] Figure 3 This is a front view schematic diagram of the fireproof partition in Example 2;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the fireproof partition in Example 3;

[0025] In the diagram, 1-metal pipe rack; 2-fireproof partition; 3-first nozzle; 4-first wheel; 5-second wheel; 6-horizontal quick-connect port; 7-moving rod; 8-handle; 9-connecting ring; 10-second nozzle; 11-straight metal pipe; 12-tee connector; 13-U-shaped metal pipe; 14-open fire sprinkler head. Detailed Implementation

[0026] To further disclose the invention content, features, and effects of this utility model, the following examples are provided in conjunction with the accompanying drawings for detailed description. In the following description of the embodiments, 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," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this patent and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent.

[0027] In the following description of the embodiments, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0028] Example 1: See Appendix Figure 1-2 An electric vehicle fire extinguishing device includes a vehicle under-vehicle spray device and a set of fireproof partitions 2. The fireproof partitions 2 are 1.55 meters high and 1.6 meters long. The exterior of the fireproof partitions 2 is made of fireproof color steel plate and the interior is filled with 50 mm thick rock wool.

[0029] The main body of the under-vehicle sprinkler device is a metal pipe frame 1. Several first nozzles 3 are arranged along the axial direction of the upward side of the metal pipe frame 1 for spraying water from bottom to top. Four first wheels 4 are fixedly installed on the downward side of the metal pipe frame 1, respectively located at the four corners of the metal pipe frame 1. Second wheels 5 are fixedly installed at the bottom of the fireproof partition 2. In this example, four second wheels 5 are symmetrically installed at the bottom of each fireproof partition 2 through connecting brackets. Both the first wheels 4 and the second wheels 5 are omnidirectional wheels. A horizontal quick-connect port 6 connected to the metal pipe frame 1 is also fixedly installed to facilitate the connection of fire water pipes.

[0030] The metal tube frame 1 consists of a rectangular outer tube and several straight inner tubes. The straight inner tubes are connected to the rectangular outer tube and fixed by a tee connector 12. The straight inner tubes are parallel to the short side of the rectangular outer tube and perpendicular to the long side of the rectangular outer tube. The length of the short side of the rectangular outer tube is less than the front wheel track of a car, typically 1-1.3 meters. The horizontal quick-connect port 6 is located at the middle of the short side of one side of the rectangular outer tube. Next to the horizontal quick-connect port 6 is a movable rod 7 that fits onto the outside of the tube wall of the rectangular outer tube. The movable rod 7 is a telescopic rod with a handle 8 made of insulating and heat-resistant material at its end.

[0031] like Figure 2 As shown, connecting rings 9 are fixed on both the left and right sides of the fireproof partition 2. The connecting rings 9 can be used to quickly fix two adjacent fireproof partitions 2. This can be achieved by using nylon ropes, chains or buckles.

[0032] Example 2: See Appendix Figure 3 An electric vehicle fire extinguishing device is disclosed, wherein a straight metal pipe 11 with several second nozzles 10 is fixedly mounted on the top of the fireproof partition 2. Both ends of the straight metal pipe 11 are provided with quick-connect fittings for connecting to a fire hose, another straight metal pipe 11, or a plug. The second nozzles 10 are angled downwards to quickly extinguish flames on the vehicle roof in confined spaces, reducing the risk of injury to firefighters. Other structural features are essentially the same as in Embodiment 1.

[0033] Example 3: See Appendix Figure 4 An electric vehicle fire extinguishing device is disclosed, wherein a U-shaped metal pipe 13 is installed on the side of the fireproof partition 2 facing the under-vehicle sprinkler device. The U-shaped metal pipe 13 is a DN25 galvanized steel pipe and is fixed to the side of the fireproof partition 2 by a U-shaped buckle. Several open fire sprinkler heads 14 are provided on the U-shaped metal pipe 13; a quick connector is provided at the middle connection of the U-shaped metal pipe 13 for connecting fire water pipes.

[0034] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other modifications under the guidance of the present invention without departing from the spirit and scope of the claims. These modifications all fall within the protection scope of the present invention.

Claims

1. A fire extinguishing device for electric vehicles, characterized in that: It includes an undercarriage sprinkler system and at least one set of fireproof partitions; the main body of the undercarriage sprinkler system is a metal pipe frame, and a number of first nozzles are arranged along the axial direction of the upward side of the metal pipe frame, and a first wheel is fixedly installed on the downward side of the metal pipe frame; a second wheel is fixedly installed at the bottom of the fireproof partition; and a horizontal quick-connect port communicating with it is also fixedly installed on the metal pipe frame.

2. The electric vehicle fire extinguishing device according to claim 1, characterized in that: The metal tube frame consists of a rectangular outer tube and several straight inner tubes, with the straight inner tubes connected to the rectangular outer tube and fixed by a tee joint.

3. The electric vehicle fire extinguishing device according to claim 2, characterized in that: The straight inner tube is parallel to the short side of the rectangular outer tube and perpendicular to the long side of the rectangular outer tube.

4. The electric vehicle fire extinguishing device according to claim 2, characterized in that: The horizontal quick-connect port is located in the middle of the short side on one side of the rectangular outer tube.

5. The electric vehicle fire extinguishing device according to claim 4, characterized in that: Next to the horizontal quick-connect port, there is a movable rod that is fitted onto the outside of the tube wall of the rectangular outer tube.

6. The electric vehicle fire extinguishing device according to claim 5, characterized in that: The movable rod is a telescopic rod with a handle made of insulating and heat-resistant material at its end.

7. An electric vehicle fire extinguishing device according to any one of claims 1-6, characterized in that: The fireproof partition is fixed with connecting rings on both the left and right sides.

8. The electric vehicle fire extinguishing device according to claim 7, characterized in that: The top of the fireproof partition is fixedly fitted with a straight metal pipe with several second nozzles, the second nozzles being inclined downwards.

9. The electric vehicle fire extinguishing device according to claim 8, characterized in that: The straight metal tube is equipped with quick-connect fittings at both ends.

10. A fire extinguishing device for electric vehicles according to claim 7, characterized in that: A U-shaped metal pipe is installed on the side of the fireproof partition facing the under-vehicle sprinkler device, and several open fire sprinkler heads are provided on the U-shaped metal pipe; a quick connector is provided at the middle connection of the U-shaped metal pipe.

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