Battery pack
A battery pack is provided. The battery pack includes: a plurality of battery modules mutually connected by a bus bar; a mold assembly including a module receiver configured to receive the battery module; and a pack case configured to receive the mold assembly.
1. A battery pack, comprising:
a plurality of battery modules mutually connected by at least one U-shaped bus bar;
a mold assembly configured to receive the plurality of battery modules; and
a pack case configured to receive the mold assembly,
wherein the mold assembly includes:
a main mold having a plurality of module receivers, each configured to receive a corresponding one of the plurality of battery modules, and
a roof mold configured to cover an upper opening of the main mold, the roof mold being separable from the main mold,
wherein the roof mold comprises a polymer resin,
wherein the roof mold includes at least one bus bar receiver having a same U-shape in a plan view as the at least one U-shaped bus bar,
wherein the at least one U-shaped bus bar is fitted into the U-shape of the at least one bus bar receiver, and
wherein top and side surfaces of the at least one U-shaped bus bar are in direct contact with the roof mold.
2. The battery pack of claim 1 , wherein each of the plurality of battery modules comprises a plurality of battery cells.
3. The battery pack of claim 1 , wherein the at least one U-shaped bus bar connects external terminals provided to each of the plurality of battery modules.
4. The battery pack of claim 1 , wherein the main mold is fastened to the roof mold by a fastening bolt.
5. The battery pack of claim 1 , wherein each of the module receivers has a shape and a size corresponding to the corresponding one of the battery modules.
6. The battery pack of claim 1 , wherein the main mold comprises a polymer resin.
7. A battery pack, comprising:
a plurality of battery modules mutually connected by at least one U-shaped bus bar;
a mold assembly configured to receive the plurality of battery modules; and
a pack case configured to receive the mold assembly,
wherein the mold assembly includes:
a main mold having a plurality of module receivers, each configured to receive a corresponding one of the plurality of battery modules, and
a roof mold configured to cover an upper opening of the main mold, the roof mold being separable from the main mold,
wherein the main mold comprises a polymer resin,
wherein the roof mold includes at least one bus bar receiver having a same U-shape in a plan view as the at least one U-shaped bus bar,
wherein the at least one U-shaped bus bar is forcibly fitted into the U-shape of the at least one bus bar receiver, and
wherein top and side surfaces of the at least one U-shaped bus bar are in direct contact with the roof mold.
8. The battery pack of claim 7 , wherein each of the plurality of battery modules comprises a plurality of battery cells.
9. The battery pack of claim 7 , wherein the at least one U-shaped bus bar connects external terminals provided to each of the plurality of battery modules.
10. The battery pack of claim 7 , wherein the main mold is fastened to the roof mold by a fastening bolt.
11. The battery pack of claim 7 , wherein each of the module receivers has a shape and a size corresponding to the corresponding one of the battery modules.
12. The battery pack of claim 7 , wherein the roof mold comprises a polymer resin.
13. The battery pack of claim 1 , wherein:
the U-shape of the at least one U-shaped bus bar includes arms and a bottom that are coplanar, such that the bottom surface of the at least one U-shaped bus bar has the U-shape; and
a bottom surface of the arms of the U-shape of the at least one U-shaped bus bar that are in direct contact with the plurality of battery modules is coplanar with a bottom surface of the bottom of the U-shape of the at least one U-shaped bus bar.
14. The battery pack of claim 7 , wherein:
the U-shape of the bus at least one U-shaped bar includes arms and a bottom that are coplanar, such that the bottom surface of the at least one U-shaped bus bar has the U-shape; and
a bottom surface of the arms of the U-shape of the at least one U-shaped bus bar that are in direct contact with the plurality of battery modules is coplanar with a bottom surface of the bottom of the U-shape of the at least one U-shaped bus bar.
15. The battery pack of claim 1 , wherein the at least one bus bar receiver has the U-shape and a size corresponding to the at least one U-shaped bus bar, which is forcibly fitted into the at least one bus bar receiver.
16. The battery pack of claim 1 , wherein the plurality of battery modules are separated from each other by the main mold and are connected to each other via the at least one U-shaped bus bar.
17. The battery pack of claim 5 , wherein the plurality of battery modules are forcibly fitted into the plurality of module receivers, respectively.
18. The battery pack of claim 7 , wherein the at least one bus bar receiver has the U-shape and a size corresponding to the at least one U-shaped bus bar, which is forcibly fitted into the at least one bus bar receiver.
19. The battery pack of claim 7 , wherein the plurality of battery modules are separated from each other by the main mold and are connected to each other via the at least one U-shaped bus bar.
20. The battery pack of claim 11 , wherein the plurality of battery modules are forcibly fitted into the plurality of module receivers, respectively.