US 12,368,210 B2
Fire safety system for mobility
Jong Won Kim, Cheonan-si (KR); and Youn Sic Nam, Daejeon (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Jul. 11, 2022, as Appl. No. 17/861,410.
Claims priority of application No. 10-2021-0105576 (KR), filed on Aug. 10, 2021.
Prior Publication US 2023/0052320 A1, Feb. 16, 2023
Int. Cl. H01M 10/613 (2014.01); A62C 3/16 (2006.01); A62C 37/11 (2006.01); F25B 45/00 (2006.01); H01M 10/48 (2006.01); H01M 10/63 (2014.01); H01M 10/6567 (2014.01); H01M 10/663 (2014.01); H01M 50/383 (2021.01)
CPC H01M 50/383 (2021.01) [A62C 3/16 (2013.01); A62C 37/11 (2013.01); F25B 45/00 (2013.01); H01M 10/482 (2013.01); H01M 10/486 (2013.01); H01M 10/613 (2015.04); H01M 10/63 (2015.04); H01M 10/6567 (2015.04); H01M 10/663 (2015.04); H01M 2200/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fire safety system for a mobility, the fire safety system comprising:
an air conditioner system comprising a compressor, a condenser, an expander, and an evaporator, wherein the air conditioner system is configured to circulate a refrigerant through the compressor, the condenser, the expander, and the evaporator;
a battery pack comprising a battery and a temperature sensor;
a refrigerant injector installed in the battery pack and coupled to the air conditioner system; and
a controller configured to control the refrigerant injector to selectively inject the refrigerant into the battery in response to a temperature of the battery measured by the temperature sensor being equal to or greater than a temperature threshold,
wherein the refrigerant injector comprises a refrigerant supply line extending from the battery inside the battery pack in the air conditioner system and an injector installed on the refrigerant supply line to match the battery and configured to be opened and closed according to control of the controller; and
wherein the injector comprises a cap part in communication with the refrigerant supply line, a sealing part filled in the cap part to seal the cap part and configured to melt at a specific temperature, and a heat generator provided in contact with the sealing part in the cap part and configured to, according to control of the controller, proactively generate heat to melt the sealing part in response to the temperature of the battery being equal to or greater than the temperature threshold.