Battery module and battery pack comprising same
Provided is a battery module. The battery module according to an embodiment of the present disclosure may include: a cartridge assembly including a plurality of cartridges receiving battery cells; a substrate protecting body combined to the cartridge assembly; a casing receiving the cartridge assembly and the substrate protecting body and surrounding the cartridge assembly and the substrate protecting body; and a cover combined to the casing, wherein the substrate protecting body includes a interval retaining unit so that a main body of the substrate protecting body is separated from the casing at a predetermined interval.
1. A battery module comprising:
a cartridge assembly including a plurality of cartridges receiving battery cells;
a substrate protecting body combined to the cartridge assembly;
a casing receiving the cartridge assembly and the substrate protecting body and surrounding the cartridge assembly and the substrate protecting body; and
a cover combined to the casing,
wherein the substrate protecting body includes an interval retaining unit so that a main body of the substrate protecting body is separated from the casing at a predetermined interval.
2. The battery module of claim 1 , wherein the interval retaining unit comprises at least one protrusion protruding from the main body and contacting the casing.
3. The battery module of claim 2 , wherein the casing comprises a non-contacting unit which does not contact the interval retaining unit, and the non-contacting unit is spaced apart from the main body at the predetermined interval.
4. The battery module of claim 3 , wherein the non-contacting unit comprises a welded part where welding is performed.
5. The battery module of claim 1 , wherein the casing comprises:
a first casing surrounding the cartridge assembly; and
a second casing combined to the first casing and surrounding the substrate protecting body.
6. The battery module of claim 5 , wherein the first casing and the second casing are prepared in a separate form and combined to each other.
7. The battery module of claim 6 , wherein the first casing and the second casing are combined to each other by a laser welding.
8. The battery module of claim 1 , wherein the substrate protecting body is formed of a plastic material.
9. A battery pack comprising the battery module according to claim 1 .
10. An automobile comprising the battery module according to claim 1 .