Methods and apparatus to cool electronic devices
Apparatus, systems, and methods are disclosed for cooling an electronic device. An example electronic device includes a chassis, a first fan including a first outlet and a second outlet, and a second fan having a third outlet and a fourth outlet. In the example electronic device, the first fan is to exhaust air through the first outlet and the second fan is to exhaust air through the third outlet to create a positive pressure in the chassis. The first fan is to exhaust air through the second outlet to an exterior of the chassis, and the second fan is to exhaust air through the fourth outlet to an exterior of the chassis.
1 . An electronic device comprising:
a chassis;
a first fan including a first center of rotation, a first outlet facing a first direction, and a second outlet facing a second direction, the second direction of the second outlet orthogonal to the first direction of the first outlet at the first center of rotation;
a first heat sink at an edge of the chassis at the second outlet;
a second fan including a second center of rotation, a third outlet facing a third direction, and a fourth outlet facing a fourth direction, the fourth direction of the fourth outlet orthogonal to the third direction of the third outlet at the second center of rotation;
a second heat sink at the edge of the chassis at the fourth outlet,
the first fan is to exhaust air through the first outlet into the chassis and the second fan is to exhaust air through the third outlet into the chassis, the air from the first outlet and the third outlet to flow from the chassis through a fifth outlet to an exterior of the chassis,
the first fan is to exhaust air through the second outlet to the exterior of the chassis, and
the second fan is to exhaust air through the fourth outlet to an exterior of the chassis;
a first partition around the first fan;
a second partition around the second fan; and
a third partition between the first partition and the second partition,
the first partition, the second partition, and the third partition form a hyperbaric chamber in the chassis adjacent the fifth outlet.
2 . The electronic device of claim 1 , wherein the first fan and the second fan are to create a positive pressure in the chassis.
3 . The electronic device of claim 1 , wherein the first direction and the third direction are opposite.
4 . The electronic device of claim 3 , wherein the third direction is aligned with the first direction such that air exhausted from the first outlet is directed toward air exhausted from the third outlet.
5 . The electronic device of claim 3 , wherein the first fan and the second fan are to create a positive pressure in the chassis, and the third direction is aligned with the first direction such that air exhausted from the first outlet is directed away from air exhausted from the third outlet, and the first fan is to create the positive pressure in a first region of the chassis, and the second fan is to create the positive pressure in a second region of the chassis, the second region adjacent the first region.
6 . The electronic device of claim 1 , wherein the first fan is to exhaust air through the second outlet in the second direction, and the second fan is to exhaust air through the fourth outlet in the fourth direction parallel to the first direction.
7 . The electronic device of claim 1 , including:
a plurality of electronic components, the first fan is to exhaust air through the first outlet and the second fan is to exhaust air through the third outlet over one or more of the electronic components; and
a heat exchanger, the first fan is to exhaust air through the second outlet and the second fan is to exhaust air through the fourth outlet through the heat exchanger.
8 . The electronic device of claim 1 , wherein the first fan is to operate at a first operating point and the second fan is to operate a second operating point different than the first operating point.
9 . The electronic device of claim 1 , wherein the first fan is to exhaust air through the first outlet in the first direction to create a positive pressure in a first region of the chassis, and the second fan is to exhaust air through the third outlet in the third direction to create a positive pressure in a second region of the chassis, the third direction aligned with the first direction, and the second region adjacent the first region.
10 . The electronic device of claim 1 , wherein the first fan and the second fan are separated a distance, and the first fan and the second fan are to create positive pressure within the distance.
11 . The electronic device of claim 1 , wherein the first fan is to create positive pressure in a first region of the chassis on a first side of the first fan, and the second fan is to create positive pressure in a second region of the chassis, the second region on a second side of the first fan between the first fan and the second fan.
12 . The electronic device of claim 1 , wherein the first fan is to create positive pressure in a first region of the chassis on a first side of the first fan, and the second fan is to create positive pressure in a second region of the chassis, a first side of the second fan adjacent a second side of the first fan, and the second region on a second side of the second fan.
13 . The electronic device of claim 1 , wherein there are six partitions.
14 . An electronic device comprising:
a housing;
a first fan to produce a first exhaust stream and a second exhaust stream, the second exhaust stream orthogonal to the first exhaust stream at a first center of rotation of the first fan;
a second fan to produce a third exhaust stream and a fourth exhaust stream, the fourth exhaust stream orthogonal to the third exhaust stream at a second center of rotation of the second fan,
the second exhaust stream to flow through a first outlet to an exterior of the housing, past a first heat sink at an edge of the housing at the first outlet,
the fourth exhaust stream to flow through a second outlet to the exterior of the housing, past a second heat sink at the edge of the housing at the second outlet, and
the first exhaust stream and the third exhaust stream to flow through the housing to a third outlet to the exterior of the housing without flowing past the first heat sink and the second heat sink at the edge of the housing;
a first partition around the first fan;
a second partition around the second fan; and
a third partition between the first partition and the second partition,
the first partition, the second partition, and the third partition form a hyperbaric chamber in the housing adjacent the third outlet.
15 . The electronic device of claim 14 , wherein the first exhaust stream and the third exhaust stream create a positive pressure in the housing, and the second exhaust stream and the fourth exhaust stream include sub-ambient pressure.
16 . The electronic device of claim 14 , wherein the first exhaust steam is in a first direction and the third exhaust stream is a second direction opposite the first direction.
17 . The electronic device of claim 16 , wherein the second direction is aligned with the first direction such that the first exhaust steam and the third exhaust stream flow toward each other.
18 . The electronic device of claim 16 , wherein the second direction is aligned with the first direction such that the first exhaust stream and the third exhaust stream flow away from each other, and the first fan is to create the positive pressure in a first region of the chassis, and the second fan is to create the positive pressure in a second region of the chassis, the second region adjacent the first region.
19 . The electronic device of claim 14 , wherein the first exhaust stream and the third exhaust stream are orthogonal to the second exhaust stream and the fourth exhaust stream.
20 . The electronic device of claim 14 , wherein the first exhaust stream is to flow over a first region of the chassis and the third exhaust stream is to flow over a second region of the chassis, the second region adjacent the first region, the first region and the second region separated by the first fan.
21 . The electronic device of claim 20 , wherein the first region and the second region are separated by the first fan and the second fan.