US 12,438,201 B2
Battery rack having wireless communication optimization structure and energy storage system including the same
Ji-Won Hwang, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/795,807
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Apr. 27, 2021, PCT No. PCT/KR2021/005338
§ 371(c)(1), (2) Date Jul. 27, 2022,
PCT Pub. No. WO2021/246647, PCT Pub. Date Dec. 9, 2021.
Claims priority of application No. 10-2020-0067904 (KR), filed on Jun. 4, 2020.
Prior Publication US 2023/0054678 A1, Feb. 23, 2023
Int. Cl. H01M 10/42 (2006.01); H01M 50/204 (2021.01); H01M 50/24 (2021.01); H01P 3/12 (2006.01); H01Q 1/22 (2006.01); H05K 9/00 (2006.01)
CPC H01M 10/425 (2013.01) [H01M 10/4207 (2013.01); H01M 50/204 (2021.01); H01M 50/24 (2021.01); H01P 3/12 (2013.01); H01Q 1/22 (2013.01); H05K 9/0081 (2013.01); H01M 2010/4271 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A battery rack, comprising:
a rack housing having a cabinet with an inner space formed therein and a door provided to open and close the cabinet;
a plurality of battery modules disposed in the inner space of the cabinet stacked in an upper and lower direction;
a plurality of slave modules respectively mounted to the plurality of battery modules to monitor a state of each battery module of the plurality of battery modules, each slave module of the plurality of slave modules having a slave antenna for wireless communication;
a master module disposed at one of an interlayer, a top and a bottom of the plurality of battery modules to manage states of the plurality of battery modules based on information provided from the plurality of slave modules and having a master antenna for wireless communication; and
a waveguide installed at an inner surface of the door to form a wireless communication path between the plurality of slave modules and the master module,
wherein the waveguide includes:
a body portion having a hollow tube shape and disposed to extend along a height direction of the door;
at least one slave docking portion having a first side provided to communicate with the body portion and a second side provided to make surface contact with a slave module of the plurality of slave modules when the door is closed; and
a master docking portion having a first side provided to communicate with the body portion and a second side provided to make surface contact with the master module when the door is closed.