Fire suppression apparatus for a battery pack
AssigneeLG Chem, Ltd.
InventorsSeung-Hun Jung, Dong-Seok Shin, Young-Joon Shin
Life of this patent
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Abstract
Disclosed is an apparatus capable of suppressing a fire of a battery pack when a fire occurs at the battery pack. The fire suppression apparatus includes a fire detection sensor for detecting the probability of fire occurrence at a battery pack, a fire-extinguishing chemical tank containing a fire-extinguishing chemical in an inner space therein, and a control unit for allowing the fire-extinguishing chemical of the fire-extinguishing chemical tank into the battery pack when fire occurrence is detected by the fire detection sensor.
Claims15
A fire suppression apparatus for a battery pack, comprising:
- a fire detection sensor for detecting a probability of fire occurrence in a battery pack;
- a fire-extinguishing chemical tank containing a fire-extinguishing chemical, wherein the fire-extinguishing chemical tank includes an outlet connected to the inside of the battery pack to discharge the fire-extinguishing chemical, a piston to discharge the fire-extinguishing chemical through the outlet by means of movement, and an explosive to move the piston by explosion;
- a first outlet valve to open or close the outlet of the fire-extinguishing chemical tank;
- and
- a control unit programmed to allow the fire-extinguishing chemical of the fire-extinguishing chemical tank into the battery pack when fire occurrence is detected by the fire detection sensor,
- wherein when fire occurrence is detected, the first outlet valve is opened under the control of the control unit, and the control unit subsequently explodes the explosive of the fire-extinguishing chemical tank to move the piston so that the fire-extinguishing chemical is injected into the battery pack.
A method for detecting and suppressing fire in a battery pack, comprising:
- detecting a fire in a battery pack;
- opening a first outlet valve of an outlet of a fire-extinguishing chemical tank, wherein the outlet connects to the inside of the battery pack and wherein the fire-extinguishing chemical tank contains a fire-extinguishing chemical;
- subsequent to opening the first outlet valve, exploding an explosive contained within the fire-extinguishing chemical tank to move a piston contained within the fire-extinguishing chemical tank;
- and
- injecting the fire-extinguishing chemical through the outlet and into the battery pack by the movement of the piston.
Dependencies are inferred from the claim text.