US 12,294,071 B2
Battery pack incorporating battery module and rigid beam and adopting reverse assembling
Ho-June Chi, Daejeon (KR); Kyung-Mo Kim, Daejeon (KR); Jin-Yong Park, Daejeon (KR); Jhin-Ha Park, Daejeon (KR); Jung-Hoon Lee, Daejeon (KR); Hee-Jun Jin, Daejeon (KR); and Jeong-O Mun, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/630,049
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR)
PCT Filed Aug. 5, 2020, PCT No. PCT/KR2020/010350
§ 371(c)(1), (2) Date Jan. 25, 2022,
PCT Pub. No. WO2021/025469, PCT Pub. Date Feb. 11, 2021.
Claims priority of application No. 10-2019-0096282 (KR), filed on Aug. 7, 2019.
Prior Publication US 2022/0278389 A1, Sep. 1, 2022
Int. Cl. H01M 10/6556 (2014.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/6568 (2014.01); H01M 50/147 (2021.01); H01M 50/264 (2021.01); H01M 50/271 (2021.01); H01M 50/291 (2021.01); H01M 50/505 (2021.01); H01M 50/293 (2021.01)
CPC H01M 10/6556 (2015.04) [H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/6568 (2015.04); H01M 50/147 (2021.01); H01M 50/264 (2021.01); H01M 50/271 (2021.01); H01M 50/291 (2021.01); H01M 50/505 (2021.01); H01M 50/293 (2021.01); H01M 2220/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A battery pack, comprising:
a plurality of battery modules; and
a pack case in which the plurality of battery modules are fixedly installed, the pack case including:
a pack tray located at a lower portion of the plurality of battery modules; and
a pack cover coupled with the pack tray and covering the plurality of battery modules,
wherein each of the plurality of battery modules is fixedly coupled to the pack cover and includes:
battery cells arranged in one direction;
a module case for accommodating the battery cells in an inner space thereof; and
a rigid beam disposed between the battery cells inside the module case, and
wherein the rigid beam of each of the plurality of battery modules are connected to the pack cover by a first fastening member that is fastened vertically to an outside of the pack cover.
 
12. A battery pack, comprising:
a plurality of battery modules; and
a pack case in which the plurality of battery modules are fixedly installed, the pack case including:
a pack tray located at a lower portion of the plurality of battery modules; and
a pack cover coupled with the pack tray and covering the plurality of battery modules,
wherein each of the plurality of battery modules is fixedly coupled to the pack cover and includes:
battery cells arranged in one direction;
a module case for accommodating the battery cells in an inner space thereof; and
a rigid beam disposed between the battery cells inside the module case,
wherein each of the battery modules includes electrode terminals protruding horizontally on a first side surface of the module case,
wherein the pack cover includes at least one terminal connection unit at an inner surface of the pack cover,
wherein the electrode terminals of a first battery module among the plurality of battery modules and the electrode terminals of a second battery module among the plurality of battery modules are electrically connected by the at least one terminal connection unit, and
wherein the at least one terminal connection unit includes:
an insulating bracket fixedly coupled to the inner surface of the pack cover; and
an inter-bus bar mounted to the insulating bracket and electrically connected to the respective electrode terminals.
 
13. A battery pack, comprising:
a plurality of battery modules; and
a pack case in which the plurality of battery modules are fixedly installed, the pack case including:
a pack tray located at a lower portion of the plurality of battery modules; and
a pack cover coupled with the pack tray and covering the plurality of battery modules,
wherein each of the plurality of battery modules is fixedly coupled to the pack cover and includes:
battery cells arranged in one direction;
a module case for accommodating the battery cells in an inner space thereof; and
a rigid beam disposed between the battery cells inside the module case,
wherein each of the battery modules includes electrode terminals protruding horizontally on a first side surface of the module case,
wherein the pack cover includes at least one terminal connection unit at an inner surface of the pack cover,
wherein the electrode terminals of a first battery module among the plurality of battery modules and the electrode terminals of a second battery module among the plurality of battery modules are electrically connected by the at least one terminal connection unit,
wherein the electrode terminals and the respective at least one terminal connection unit are integrally connected by a second fastening member that is vertically inserted into the electrode terminals and the at least one terminal connection unit,
wherein the module case further includes a terminal support configured to support a lower portion of the electrode terminals,
wherein each of the plurality of battery modules is fixed to the pack cover, and
wherein the terminal support, the electrode terminal and the at least one terminal connection unit are integrally connected by the second fastening member.