US 12,115,399 B2
Device and method for extinguishing fire in battery pack for ship preliminary class
Sung Beom Lee, Ulsan (KR)
Assigned to Seho Marine Solutions Co., Ltd., Ulsan (KR)
Filed by Seho Marine Solutions Co., Ltd., Ulsan (KR)
Filed on Nov. 30, 2023, as Appl. No. 18/525,761.
Claims priority of application No. 10-2023-0016431 (KR), filed on Feb. 7, 2023.
Prior Publication US 2024/0261609 A1, Aug. 8, 2024
Int. Cl. A62C 3/10 (2006.01); A62C 3/16 (2006.01); A62C 37/36 (2006.01)
CPC A62C 3/10 (2013.01) [A62C 3/16 (2013.01); A62C 37/04 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A device for extinguishing a fire in a battery pack for a ship, the device comprising:
a battery room in which a plurality of battery packs are stored and which is provided with a battery storage unit;
a fire detection unit provided with a fusible plug attachably disposed inside the battery room and having a portion to be melted to lose a pressure inside a detection line when a temperature of the battery room is greater than a threshold and configured to detect an abnormal temperature inside the battery room and transmit information on the abnormal temperature; and
a fire extinguishing unit provided outside the battery room and configured to extinguish a fire by supplying seawater when the fire detection unit detects the fire,
wherein the battery room, in which the plurality of battery packs are stored, includes:
the battery storage unit provided inside the battery room to surround the plurality of battery packs and having an open upper portion to isolate a battery;
an overflow discharge line which is provided on one side of the battery storage unit, of which one end is connected to the battery storage unit and the other end is connected to an outside of a ship, and which opens a valve when the battery storage unit is submerged to discharge inside seawater to an outside; and
a seawater inflow line of which one end passes through the battery room and is connected to a seawater inlet of the battery storage unit and the other end is connected to a seawater supply line of the fire extinguishing unit and which causes seawater to flow into the battery storage unit to submerge the battery storage unit,
the fire detection unit includes:
a pressure valve connected to a predetermined position of the detection line, provided in the seawater supply line in a closed state, and opened due to pressure loss when the fusible plug is damaged.