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KR-20260065198-A - Electric vehicle battery case that can be extinguished during Golden Time

KR20260065198AKR 20260065198 AKR20260065198 AKR 20260065198AKR-20260065198-A

Abstract

The present invention relates to a battery case for an electric vehicle capable of extinguishing a fire within a golden time (2 to 3 minutes), and more specifically, to a new type of battery case for an electric vehicle capable of extinguishing a fire within a golden time, in which one-touch coupler plugs are connected to the outer sides of the case, front, back, left, and right, respectively, so as to be exposed to the outside of the vehicle body, and a fire extinguishing agent is rapidly injected into the battery case within a golden time (2 to 3 minutes) to extinguish the fire when a battery fire occurs.

Inventors

  • 김홍준

Assignees

  • (주)에스에프코퍼레이션
  • 김홍준

Dates

Publication Date
20260508
Application Date
20241101

Claims (8)

  1. In an electric vehicle battery case capable of being consumed within the golden time, The above-mentioned battery case (100) for an electric vehicle capable of being consumed within the golden time comprises a case body (10) formed in the shape of an enclosure, in which a receiving space (11) is formed inside for accommodating a battery module (1), and the edges of an upper case (13) and a lower case (14) are fastened together with bolts and nuts. A plurality of drug inlet pipes (20), one end of which is connected to the case body (10) and the other end of which is connected to the body including the front/rear bumper, the lower part between the left and right doors, and the fender of the automobile, and A battery case for an electric vehicle capable of extinguishing within the golden time, characterized by including a plug (31) that is connected to the end of the above-mentioned drug inlet pipe (20) and fixed to the body including the front/rear bumper, the lower part between the left and right doors, and the fender of the vehicle.
  2. In Article 1, An electric vehicle battery case capable of extinguishing within the golden time, characterized by further including a flame-retardant pad (12) formed at the connection portion of the upper case (13) and lower case (14) constituting the above case body (10), which protects the case body (10) when a fire occurs in the battery pack (2) and simultaneously directs flames and hot air toward the agent inlet pipe (20) to induce rapid extinguishing of the battery pack (2) of the vehicle (1).
  3. In Article 1, The above plug (31) is characterized by being protected from external exposure and external impact by a cap (4) formed in a shape that can be opened and closed on the body (3), in a battery case for an electric vehicle capable of extinguishing within the golden time.
  4. In Article 1, A battery case for an electric vehicle capable of extinguishing a fire within the golden time, characterized in that, in the event of a fire, the plug (31) is connected in a one-touch manner to a one-touch coupler (30) composed of a socket (32) connected to a fire extinguisher device that is coupled to the plug (31).
  5. In Article 1, The above case body (10) includes an upper case (13) and a lower case (14), and In the lower case (14) above, a plurality of connecting parts (15) are formed in the front, rear, left, and right directions through which a fire extinguishing agent flows in all directions, and One side of the above drug inlet pipe (20) is connected to the connecting part (15) of the case body (10), and A battery case for an electric vehicle capable of extinguishing within the golden time, characterized in that a female connecting part (21) with a female screw hole (211) and a groove (212) formed at the end connected to the connecting part (15) of the above-mentioned drug inlet pipe (20) is fitted with a female connecting part (21) having a packing (22) formed inside, the drug inlet pipe (20) passes through the groove (212) of the above-mentioned drug inlet pipe (20), and the packing (22) is fitted while the flange (23) formed at the end of the drug inlet pipe (20) is caught on the inner surface of the female screw hole (211).
  6. In Article 1, The other end of the above drug inlet pipe (20) is connected to a plug (31), and The above plug (31) is characterized by having an insertion part (312) formed with a locking groove (311) on one side that is inserted into the interior of a socket (32) and a screw part (313) on the other side to which a drug inlet pipe (20) is screw-fastened, and is integrally formed with the insertion part (312).
  7. In Article 1, The above case body (10) further includes a second drug inlet pipe (20') having a diameter 1.5 to 8 times larger than that of the drug inlet pipe (20) in the front and rear portions and having a second plug (31') formed at the end. Here, the second drug inlet pipe (20') in which the second plug (31') is formed has a flow rate of 15 Kgf/ cm² ~ 25 Kgf/ cm² An electric vehicle battery case capable of extinguishing fires within the golden time, characterized by being used at pressures above and directly connecting high-pressure extinguishing agent or extinguishing water supplied from a fire hydrant or fire truck installed inside or outside a building using a stick with a coupler, thereby enabling rapid fire suppression even after the golden time has passed.
  8. In Article 7, A battery case for an electric vehicle capable of extinguishing fires within the golden time, characterized by further including a check valve (40) formed at the connection portion between the case body (10) and the second agent inlet pipe (20') to prevent the fire extinguishing agent introduced into the case body (10) from being discharged to the outside through the second agent inlet pipe (20').

Description

Electric vehicle battery case that can be extinguished during Golden Time The present invention relates to a battery case for an electric vehicle capable of extinguishing a fire within a golden time (2 to 5 minutes), and more specifically, to a new type of battery case for an electric vehicle capable of extinguishing a fire within a golden time, wherein one or more one-touch coupler plugs are connected to the outer sides of the case, front, back, left, and right, which accommodate a battery pack including a lithium-ion battery pack installed in an electric vehicle, and are exposed to the outside of the vehicle body, thereby allowing a fire extinguishing agent to be rapidly injected into the battery case within a golden time to extinguish the fire when a battery fire occurs. Generally, electric vehicles include a battery installation space with a sealed structure on the floor plate of the vehicle body, and 10 to 30 battery cells are modularized in this battery installation space, with 6 to 12 modules installed in one pack. In such electric vehicles, if the battery, particularly a lithium-ion battery, catches fire due to an accident or various other reasons, fire suppression is extremely difficult because the high heat point temperature of the battery cells and their high-density integration cause continuous heat transfer, leading to thermal runaway and re-ignition. In other words, once an electric vehicle battery catches fire, it can easily reignite before it is completely burned, so a large amount of water must be poured continuously for a long time. However, pouring a large amount of water into a battery located in a sealed space on the floor of an electric vehicle is technically very difficult without the support of fire hydrants or fire trucks. Moreover, while it is ideal to suppress a fire in a battery within the Golden Time of 2 to 5 minutes after the fire occurs, before thermal runaway occurs, in reality, the probability of a fire truck arriving within 10 minutes is very low at less than 5%, and especially in spaces with height restrictions such as underground parking lots, entry is impossible, so the fire in the underground parking lot spreads to almost all vehicles, resulting in the entire parking lot being completely burned. In addition, even if a fire truck arrives at the scene of a fire quickly, it takes approximately 30 minutes or more to prepare for extinguishing the fire, which effectively causes the golden time to be missed and results in the loss of the vehicle due to the fire reaching the level of total vehicle destruction. A battery fire suppression device for electric vehicles, patented under Patent Registration No. 10-2713586 (Registration Date: September 30, 2024), which is a technology for minimizing damage caused by a fire related to the battery as described above, comprises a base frame (110), a lifting platform (120) located on the upper side of the base frame (110), and a lifting mechanism (130) for lifting the lifting platform (120) relative to the base frame (110); a height-adjustable stand (100) positioned below the vehicle body floor plate (22) in the event of a fire; and a first hole BN cutter (260) installed on the lifting platform (120) and rotating by fire extinguishing liquid supplied through a fire extinguishing liquid inlet part (102) connected to an external conduit, thereby perforating the vehicle body floor plate (22) to form an injection port communicating with the battery installation space, and the fire extinguishing liquid supplied through the fire extinguishing liquid inlet part (102) is the first The invention is characterized by comprising a fire extinguishing liquid injection unit (200) that injects into the battery installation space through a hole cutter (260), and a discharge port forming unit (400) that is installed on the lifting platform (120) and forms a discharge port for gas or fire extinguishing liquid discharged from the battery installation space by perforating the vehicle body floor plate (22) with a second hole cutter (460) that rotates in conjunction with the rotation of the first hole cutter (260). However, the electric vehicle battery fire suppression device configured as described above is designed to suppress a fire by spraying a fire extinguishing agent while positioned close to the electric vehicle where the fire has occurred and positioned at the location of the fire. This requires a massive amount of water and extinguishing fluid with the support of fire hydrants or fire trucks, and in most cases, the fire cannot be suppressed quickly due to the loss of the golden time, resulting in the vehicle being reduced to the level of being scrapped. FIG. 1 is an exemplary diagram of a vehicle equipped with an electric vehicle battery case capable of being extinguished within the golden time according to the first embodiment of the present invention. FIG. 2 is a perspective view of an electric vehicle battery case capable of extinguishing within th