Cooling device for electronic apparatus
A first air blower is rotated to blow air so as to create a flow of air between fins of a heat sink, and has a first discharge surface for discharging air toward the heat sink. A second air blower is rotated to blow air so as to create a flow of air between the fins, has a second discharge surface for discharging air toward the heat sink, and is provided adjacent to the first air blower. A duct covers the heat sink, the first air blower, and the second air blower, and has intake ports upstream and an exhaust port downstream in an air blowing direction of the first air blower and the second air blower. A partition member is provided between the heat sink and the first air blower and the second air blower, and has a bottom plate and a partition wall. The bottom plate is in contact with a base portion and configured to conduct heat of the base portion. The partition wall stands on the bottom plate and divides a space above the bottom plate from a position between the first discharge surface and the second discharge surface to one of the fins.
1. A cooling device for an electronic apparatus, comprising:
a heat sink having a plurality of fins standing side by side in a thickness direction on a base portion that conducts heat of an electronic component;
a first air blower configured to rotate to blow air so as to create a flow of air between the fins, the first air blower comprising a first discharge surface for discharging the air toward the heat sink;
a second air blower configured to rotate to blow air so as to create a flow of air between the fins, the second air blower comprising a second discharge surface for discharging the air toward the heat sink, and provided adjacent to the first air blower;
a duct that covers the heat sink, the first air blower, and the second air blower, and that comprises intake ports upstream and an exhaust port downstream in an air blowing direction of the first air blower and the second air blower; and
a partition member that is provided between the heat sink and the first air blower and the second air blower, the partition member comprising a bottom plate and a partition wall, the bottom plate being in contact with the base portion and configured to conduct heat of the base portion, the partition wall standing on the bottom plate and dividing a space above the bottom plate from a position between the first discharge surface and the second discharge surface to one of the fins.
2. The cooling device according to claim 1 , wherein
end surfaces of the bottom plate and the base portion are in contact with each other, and the end surfaces are slopes facing each other.
3. The cooling device according to claim 1 , wherein
the partition member further comprises one or more pairs of separation walls that further divide the space divided by the partition wall and that divide the space from central portions of the first air blower and the second air blower to one of the fins.
4. The cooling device according to claim 3 , wherein
the separation walls divide the space from the first air blower and the second air blower to the heat sink and are provided at positions or angles at which a flow rate or a flow velocity of air flowing between the fins standing at positions of the base portion where the electronic component is in contact with the base portion is larger than a flow rate or a flow velocity of air around the other fins.
5. The cooling device according to claim 1 , wherein
the partition member is continuously formed by hemming a plate-shaped metal material.
6. The cooling device according to claim 1 , wherein
the heat sink comprises at least one of aluminum and copper.
7. The cooling device according to claim 1 , wherein
the plurality of fins are positioned with respect to one another in a predetermined interval.
8. An electronic apparatus, comprising:
an electronic component; and
a cooling device comprising:
a heat sink having a plurality of fins standing side by side in a thickness direction on a base portion that conducts heat of the electronic component;
a first air blower configured to rotate to blow air so as to create a flow of air between the fins, the first air blower comprising a first discharge surface for discharging the air toward the heat sink;
a second air blower configured to rotate to blow air so as to create a flow of air between the fins, the second air blower comprising a second discharge surface for discharging the air toward the heat sink, and provided adjacent to the first air blower;
a duct that covers the heat sink, the first air blower, and the second air blower, and that comprises intake ports upstream and an exhaust port downstream in an air blowing direction of the first air blower and the second air blower; and
a partition member that is provided between the heat sink and the first air blower and the second air blower, the partition member comprising a bottom plate and a partition wall, the bottom plate being in contact with the base portion and configured to conduct heat of the base portion, the partition wall standing on the bottom plate and dividing a space above the bottom plate from a position between the first discharge surface and the second discharge surface to one of the fins.
9. The electronic apparatus according to claim 8 , wherein
end surfaces of the bottom plate and the base portion are in contact with each other, and the end surfaces are slopes facing each other.
10. The electronic apparatus according to claim 8 , wherein
the partition member further comprises one or more pairs of separation walls that further divide the space divided by the partition wall and that divide the space from central portions of the first air blower and the second air blower to one of the fins.
11. The electronic apparatus according to claim 10 , wherein
the separation walls divide the space from the first air blower and the second air blower to the heat sink and are provided at positions or angles at which a flow rate or a flow velocity of air flowing between the fins standing at positions of the base portion where the electronic component is in contact with the base portion is larger than a flow rate or a flow velocity of air around the other fins.
12. The electronic apparatus according to claim 8 , wherein
the partition member is continuously formed by hemming a plate-shaped metal material.
13. The electronic apparatus according to claim 8 , wherein
the heat sink comprises at least one of aluminum and copper.
14. The electronic apparatus according to claim 8 , wherein
the plurality of fins are positioned with respect to one another in a predetermined interval.
15. A personal computer, comprising:
a CPU; and
a cooling device comprising:
a heat sink having a plurality of fins standing side by side in a thickness direction on a base portion that conducts heat of the CPU;
a first air blower configured to rotate to blow air so as to create a flow of air between the fins, the first air blower comprising a first discharge surface for discharging the air toward the heat sink;
a second air blower configured to rotate to blow air so as to create a flow of air between the fins, the second air blower comprising a second discharge surface for discharging the air toward the heat sink, and provided adjacent to the first air blower;
a duct that covers the heat sink, the first air blower, and the second air blower, and that comprises intake ports upstream and an exhaust port downstream in an air blowing direction of the first air blower and the second air blower; and
a partition member that is provided between the heat sink and the first air blower and the second air blower, the partition member comprising a bottom plate and a partition wall, the bottom plate being in contact with the base portion and configured to conduct heat of the base portion, the partition wall standing on the bottom plate and dividing a space above the bottom plate from a position between the first discharge surface and the second discharge surface to one of the fins.
16. The personal computer according to claim 15 , wherein
end surfaces of the bottom plate and the base portion are in contact with each other, and the end surfaces are slopes facing each other.
17. The personal computer according to claim 15 , wherein
the partition member further comprises one or more pairs of separation walls that further divide the space divided by the partition wall and that divide the space from central portions of the first air blower and the second air blower to one of the fins.
18. The personal computer according to claim 17 , wherein
the separation walls divide the space from the first air blower and the second air blower to the heat sink and are provided at positions or angles at which a flow rate or a flow velocity of air flowing between the fins standing at positions of the base portion where the electronic component is in contact with the base portion is larger than a flow rate or a flow velocity of air around the other fins.
19. The personal computer according to claim 15 , wherein
the partition member is continuously formed by hemming a plate-shaped metal material.
20. The personal computer according to claim 15 , wherein
the heat sink comprises at least one of aluminum and copper and the plurality of fins are positioned with respect to one another in a predetermined interval.