Air-cooling battery module
Discussed is an air-cooling battery module, which includes a cell assembly having a plurality of cells and a cooling member having a duct disposed to contact an edge portion of the cell assembly and having an air passage formed therein so that a cooling air moves therethrough, wherein the inside of the duct has a truss structure.
1. An air-cooling battery module, comprising:
a cell assembly having a plurality of cells; and
a cooling member having a duct disposed to contact an edge portion of the cell assembly and having an air passage formed therein so that a cooling air moves therethrough,
wherein an inside of the duct has a truss structure having frames,
wherein turbulence forming protrusions are formed at a recess of a first inner wall of the duct of the cooling member to protrude at predetermined intervals,
wherein the turbulence forming protrusions are further located between adjacent frames of the truss structure,
wherein the turbulence forming protrusions have a rod-type structure vertically protruding from the recess of the first inner wall of the duct of the cooling member,
wherein the truss structure includes a first uneven pattern at surfaces of the frames,
wherein a second uneven pattern is formed at a second inner wall that is inside of the duct of the cooling member, the second inner wall being opposite to and facing the first inner wall, and
wherein the first inner wall and the second inner wall face each other.
2. The air-cooling battery module according to claim 1 , further comprising:
a heat transfer material portion provided between the edge portion of the cell assembly and the cooling member.
3. The air-cooling battery module according to claim 2 , wherein an outer surface of the first inner wall of the duct of the cooling member is disposed to directly contact the heat transfer material portion.
4. The air-cooling battery module according to claim 1 , wherein the duct of the cooling member is made of an aluminum material.
5. The air-cooling battery module according to claim 1 , wherein the cooling member is respectively provided at both sides of the cell assembly and disposed to extend in a longitudinal direction of the cell assembly.
6. The air-cooling battery module according to claim 5 , further comprising:
an exhaust fan disposed at an outlet to discharge an air, moved from one end of the cooling member to the other end thereof, in a vertically upward direction.
7. The air-cooling battery module according to claim 1 , wherein the turbulence forming protrusions extends from a floor of the recess to an inner surface of the first inner wall.
8. The air-cooling battery module according to claim 1 , wherein a thickness of the frames of the truss structure is greater at the first uneven pattern than at opposite ends of the frames.
9. The air-cooling battery module according to claim 1 , wherein the turbulence forming protrusions face the second uneven pattern in the duct at a location between adjacent frames of the truss structure.