Battery module and battery pack including the same
A battery module according to an embodiment of the present disclosure includes: a cell assembly including a battery cell stack in which a plurality of battery cells are stacked; a module frame that wraps the cell assembly; and end plates that cover the front and rear surfaces of the cell assembly opened in the module frame. The module frame comprises a frame member which covers a lower part and both side surfaces of the cell assembly, and an upper plate that covers an upper part of the cell assembly. A first fixing part is formed at an edge of the frame member coupled with the end plate.
1 . A battery module comprising:
a cell assembly including a battery cell stack, wherein the battery cell stack includes a plurality of stacked battery cells;
a module frame configured to at least partially wrap around the cell assembly; and
a plurality of end plates configured to cover a front surface and a rear surface of the cell assembly in the module frame,
wherein the module frame includes a frame member that covers a lower part and both side surfaces of the cell assembly, and wherein the module frame includes an upper plate that covers an upper part of the cell assembly,
wherein a first fixing part is positioned along an exterior surface of the frame member, the first fixing part coupling the frame member with the end plate, wherein the first fixing part includes a screw coupling part,
wherein the frame member comprises:
a side surface part configured to cover the side surface of the cell assembly; and
a bottom part configured to support the lower part of the cell assembly;
wherein the screw coupling part is disposed on the side surface part of the frame member, so as to protrude therefrom,
wherein the screw coupling part is parallel to an edge of the side surface part and extends along a longitudinal direction of the side surface part, and
wherein the side surface part and the bottom part are in contact with each other.
2 . The battery module of claim 1 , wherein the first fixing part comprises:
a hole part positioned in the end plate; and
a screw member configured to fit in the hole part.
3 . The battery module of claim 2 , wherein:
the screw coupling part is configured to fix the screw member.
4 . The battery module of claim 1 , wherein:
the screw coupling part has a fan-shaped arc shape.
5 . The battery module of claim 4 , wherein:
the screw coupling part is formed integrally with the side surface part.
6 . The battery module of claim 1 , wherein:
the side surface part includes a first protrusion part and a second protrusion part.
7 . The battery module of claim 6 , wherein:
the second protrusion part is configured as a plurality of second protrusion parts, and
the first protrusion part is positioned between the plurality of the second protrusion parts.
8 . The battery module of claim 7 , wherein:
the first protrusion part is formed so as to protrude more outward from the side surface part than the second protrusion part.
9 . The battery module of claim 1 , wherein:
a second fixing part is positioned along an edge of the frame member, the second fixing part coupling the frame member with the upper plate.
10 . The battery module of claim 9 , wherein the second fixing part comprises:
a third protrusion part positioned along the edge of the frame member; and
a curved surface part extending from an edge of the upper plate.
11 . The battery module of claim 10 , wherein:
the curved surface part is configured to be fixed to the third protrusion part.
12 . The battery module of claim 11 , wherein:
the curved surface part is formed in a semicircular arc shape.
13 . The battery module of claim 10 , wherein:
the curved surface part is formed in a circular arc shape.
14 . The battery module of claim 10 , wherein:
the curved surface part is positioned along an entirety of a longitudinal extent of the edge of the upper plate, and
the third protrusion part is positioned on an entirety of a longitudinal extent of the edge of the frame member.
15 . The battery module of claim 10 , wherein:
the curved surface part is formed integrally with the upper plate.
16 . A battery pack comprising the battery module of claim 1 .