Battery pack including a battery module
Provided are a battery module and a battery pack including the same, and more particularly, a battery module in which a CMU (cell monitoring unit) may be easily and conveniently mounted by providing a CMU mounting part, on which the CMU may be mounted, on an end plate constituting a module case, and a battery pack capable of simplifying the entire manufacturing process of the battery pack and increasing space utilization inside the battery pack by applying the battery module to the battery pack.
1 . A battery pack, comprising:
a battery module including a cell assembly in which a plurality of battery cells are stacked; and
an end plate disposed on one side of the cell assembly to cover the cell assembly,
wherein the end plate includes a CMU mounting part where a CMU (cell monitoring unit) for managing the cell assembly is mounted; a plate on which the battery module is disposed;
an outer frame that is formed at a predetermined height outside the plate; and
at least one inner frame that partitions an inner space formed by the plate and the outer frame into a plurality of module spaces, wherein the inner frame is formed so that a center beam or a cross beam of the inner frame is indented inward to accommodate the CMU of the battery module,
wherein the space accommodating the CMU and the space accommodating the cell assembly are contiguous, side-by-side, spaces,
wherein the CMU includes a PCB (printed circuit board) and a PCB cover, and the CMU mounting part includes a bracket protruding from the end plate at a predetermined height and accommodating the PCB therein.
2 . The battery pack of claim 1 , wherein the CMU mounting part further includes at least one protrusion protruding from the end plate at a predetermined height, and the PCB has a through hole formed at a position corresponding to the protrusion and is mounted inside the bracket through coupling of the through hole and the protrusion.
3 . The battery pack of claim 2 , wherein the PCB is fixedly coupled to the end plate by thermally fusing the protrusion penetrating through the through hole.
4 . The battery pack of claim 1 , wherein the PCB is bolted to the end plate.
5 . The battery pack of claim 4 , wherein the CMU mounting part further includes at least one bolt fastening part formed on the end plate, and
a bolt fastening hole penetrating through the PCB is formed in the PCB at a position corresponding to the bolt fastening part.
6 . The battery pack of claim 4 , wherein the CMU mounting part further includes at least one hook protruding from the bracket, and
the PCB is fitted between the hook and the end plate.
7 . The battery pack of claim 1 , wherein the CMU mounting part further includes at least one first bolt fastening part formed on the end plate, a second bolt fastening part is provided on the PCB cover at a position corresponding to the first bolt fastening part, and the PCB cover is bolted to the end plate using the first bolt fastening part and the second bolt fastening part.
8 . The battery pack of claim 1 , wherein the CMU mounting part includes at least one first locking groove or a first hook formed in the bracket, a second hook or a second locking groove is formed in the PCB cover at a position corresponding to the first locking groove or the first hook, and the PCB cover is coupled to the bracket by fastening the first locking groove to the second hook, or the first hook to the second locking groove.
9 . The battery pack of claim 1 , further comprising:
a first side cover covering a first surface of the cell assembly;
a second side cover covering a second surface of the cell assembly;
a first sensing assembly including a first connection block provided between the first side cover and the cell assembly to electrically connect the battery cells and a first sensing member connected to the first connection block and sensing information on at least one of the battery cells; and
a second sensing assembly including a second connection block provided between the second side cover and the cell assembly to electrically connect the battery cells and a second sensing member connected to the second connection block and sensing information on at least one of the battery cells.
10 . The battery pack of claim 9 , wherein the first sensing assembly further includes a first sensing connector coupling to the first sensing member,
the second sensing assembly further includes a second sensing connector coupling to the second sensing member,
the CMU further includes a first PCB connector and a second PCB connector each coupled to the PCB,
the CMU and the first sensing assembly are coupled to each other by coupling the first sensing connector with the first PCB connector, and
the CMU and the second sensing assembly are coupled to each other by coupling the second sensing connector with the second PCB connector.
11 . The battery pack of claim 9 , wherein each of the first sensing member and the second sensing member is formed of FPCB.
12 . The battery pack of claim 1 , wherein the plate includes a cooling pipe, and a thermally conductive resin layer is provided on the plate, and
the cell assembly of the battery module directly contact with the thermally conductive resin layer.
13 . The battery pack of claim 12 , further comprising:
a module space cover for shielding each of the module spaces provided on an upper portion of the battery module, and a battery pack cover for shielding the inner space provided on the upper portion of the module space cover.