Battery pack and vehicle comprising same battery pack
Discussed is a battery pack including: a battery module assembly including a plurality of battery modules including a plurality of battery cells; a pack tray on which the battery module assembly is accommodated; and a tray bar arranged on at least one side edge of the pack tray.
1. A battery pack comprising:
a battery module assembly comprising a plurality of battery modules including a plurality of battery cells;
a pack tray on which the battery module assembly is accommodated;
a tray bar arranged on at least one side edge of the pack tray, wherein the tray bar comprises a plurality of tray bars provided to face the plurality of battery modules at opposite outermost sides of the battery module assembly; and
a plurality of tolerance compensation members having rigidity ribs and provided between the plurality of battery modules at the opposite outermost sides of the battery module assembly and the plurality of tray bars,
wherein each of the plurality of tolerance compensation members comprises:
a shim part arranged in contact with the plurality of battery modules at the opposite outermost sides of the battery module assembly and the plurality of tray bars; and
an accommodating part bent from an upper end of the shim part and accommodated on an upper side of the plurality of tray bars.
2. The battery pack of claim 1 , wherein the plurality of tolerance compensation members are forcibly fitted between the plurality of battery modules at the opposite outermost sides of the battery module assembly and the plurality of tray bars.
3. The battery pack of claim 1 , wherein each of the plurality of tray bars comprises:
a bar main body supported on the pack tray;
a first support portion bent from the bar main body and configured to support the plurality of tolerance compensation members; and
a second support portion arranged between a bottom of the bar main body and the first support portion to support a bottom portion of the first support portion.
4. The battery pack of claim 1 , wherein each of the plurality of tolerance compensation members comprises a protruding part protruding from the accommodating part towards the plurality of tray bars.
5. The battery pack of claim 4 , wherein the protruding part includes a curved portion that extends away from the accommodating part.
6. The battery pack of claim 4 , wherein the first support portion comprises a plurality of combining grooves into which the protruding part of each of the plurality of tolerance compensation members is inserted.
7. The battery pack of claim 6 , wherein the plurality of combining grooves extends in a direction that intersects an extending direction of the bar main body.
8. The battery pack of claim 1 , wherein the plurality of battery modules of the battery module assembly are arranged in close contact with each other inside the pack tray.
9. The battery pack of claim 1 , wherein each of the plurality of battery cells is provided as a pouch type secondary battery, and
wherein the plurality of battery cells of each of the plurality of battery modules are arranged in close contact with each other.
10. A vehicle comprising at least one battery pack according to claim 1 .
11. The battery pack of claim 1 , wherein the plurality of tolerance compensation members are provided only between the plurality of battery modules and the plurality of tray bars.
12. The battery pack of claim 1 , wherein the battery pack lacks crush beams between the plurality of battery modules.
13. The battery pack of claim 1 , wherein the rigidity ribs are formed on one surface of each tolerance compensation member facing a corresponding one of the plurality of tray bars.