Heat dissipation apparatus and antenna assembly using the same

1 . A heat dissipation apparatus configured to cool a circuit board including at least one heat generation element, the heat dissipation apparatus comprising:

a plate facing the circuit board;

a plurality of first heat dissipation fins arranged along a first direction on one surface of the plate spaced apart from the circuit board; and

a blowing unit facing the one surface of the plate, the blowing unit including at least one fan configured to discharge air toward the one surface of the plate,

wherein a space between two adjacent first heat dissipation fins forms a side flow path configured to guide the air discharged from the at least one fan,

wherein the heat dissipation apparatus further comprises a duct unit covering at least some of the plurality of first heat dissipation fins and closing at least a part of one side, which is located opposite to the plate, of the side flow path, and

wherein the duct unit includes a first duct, and a second duct spaced apart from the first duct, wherein the first duct and the second duct are arranged along a second direction perpendicular to the first direction on the one surface of the plate, the first duct comprises a first plurality of duct fins and the second duct comprises a second plurality of duct fins, the first plurality of duct fins and the second plurality of duct fins are exposed to outside of the apparatus, wherein each of the first plurality of duct fins and the second plurality of duct fins is disposed crossing perpendicular to the plurality of first heat dissipation fins, and

wherein the blowing unit is disposed in an interspace between the first duct and the second duct.

2 . The heat dissipation apparatus of claim 1 ,

wherein each of the plurality of first heat dissipation fins extends in the second direction on the one surface of the plate, and

the side flow path is configured to guide the air discharged from the at least one fan in the second direction.

3 . The heat dissipation apparatus of claim 1 ,

wherein the plurality of first heat dissipation fins includes a plurality of first side heat dissipation fins disposed in the first direction, and a plurality of second side heat dissipation fins disposed in the first direction and spaced apart from the first side heat dissipation fins in the second direction,

a space between two adjacent first side heat dissipation fins forms a first side flow path configured to guide the air discharged from the at least one fan, and

a space between two adjacent second side heat dissipation fins forms a second side flow path configured to guide the air discharged from the at least one fan.

4 . The heat dissipation apparatus of claim 3 ,

wherein a space between the plurality of first side heat dissipation fins and the plurality of second side heat dissipation fins forms an intermediate flow path communicating with the first side flow path and the second side flow path, and

the intermediate flow path is configured to guide the air discharged from the at least one fan in the first direction.

5 . The heat dissipation apparatus of claim 4 , further comprising:

a plurality of second heat dissipation fins disposed in the second direction between the plurality of first side heat dissipation fins and the plurality of second side heat dissipation fins,

wherein each of the plurality of second heat dissipation fins extends in the first direction.

6 . The heat dissipation apparatus of claim 5 ,

wherein the plurality of first side heat dissipation fins and the plurality of second side heat dissipation fins have a first height, and

the plurality of second heat dissipation fins have a second height smaller than the first height.

7 . The heat dissipation apparatus of claim 6 , wherein the intermediate flow path includes a plurality of sub flow paths each formed as a space between two adjacent second heat dissipation fins, and a main flow path communicating with the plurality of sub flow paths.

8 . The heat dissipation apparatus of claim 3 , further comprising:

a plurality of protrusions protruding from the one surface of the plate between the plurality of first side heat dissipation fins and the plurality of second side heat dissipation fins.

9 . The heat dissipation apparatus of claim 1 ,

wherein the blowing unit includes a plurality of fans arranged along the first direction.

10 . The heat dissipation apparatus of claim 9 ,

wherein the blowing unit includes a plurality of first fans rotating in a first rotational direction, and a plurality of second fans rotating in a second rotational direction opposite to the first rotational direction, and

the first fans and the second fans are alternately disposed in the first direction.

11 . The heat dissipation apparatus of claim 1 ,

wherein the blowing unit includes a plurality of third fans disposed in the first direction, and a plurality of fourth fans disposed in the first direction, and

the plurality of third fans and the plurality of fourth fans are disposed adjacent to each other in a second direction perpendicular to the first direction.

12 . An antenna assembly comprising:

the heat dissipation apparatus according to claim 1 ; and

the circuit board including the at least one heat generation element.

13 . The antenna assembly of claim 12 , wherein the heat generation element includes an RF element.

14 . The heat dissipation apparatus of claim 1 , wherein the blowing unit includes:

a plurality of first fans rotating in a first rotational direction; and

a plurality of second fans rotating in a second rotational direction opposite to the first rotational direction,

wherein the first fans and the second fans are alternately disposed in the first direction.

15 . The heat dissipation apparatus of claim 14 , wherein:

the first fans are configured to rotate clockwise and the second fans are configured to rotate counterclockwise.

16 . The heat dissipation apparatus of claim 1 , wherein:

the blowing unit is positioned at one ends of the plurality of first heat dissipation fins in an extension direction thereof.

17 . The heat dissipation apparatus of claim 1 , wherein:

the blowing unit is disposed crossing the plurality of first heat dissipation fins and protrudes in a third direction perpendicular to both the first direction and the second direction.