Cooling system
A cooling system includes: a placement plate on which a plurality of components are disposed; and a liquid refrigerant flow path, which is formed on an opposite side of the placement plate with respect to the plurality of components, and is configured to allow a liquid refrigerant for cooling the plurality of components to flow therethrough. The path includes: a first heat-radiating portion disposed at a liquid refrigerant inlet portion around which fins are disposed such that distances from a flow-path inlet portion to the fins are gradually farther away from a flow-path side wall toward a center of the path; a second heat-radiating portion which includes fins having a curved shape; a third heat-radiating portion having no fins; a fourth heat-radiating portion having higher fin-mounting density than the first and the second heat-radiating portions, an inlet and an outlet through which the liquid refrigerant flows in and out.
1. A cooling system, comprising:
a placement plate on which a plurality of components are disposed, and
a liquid refrigerant flow path, which is formed on an opposite side of the placement plate with respect to the plurality of components, and is configured to allow a liquid refrigerant for cooling the plurality of components to flow therethrough,
wherein the liquid refrigerant flow path includes:
a liquid refrigerant inlet portion, which is disposed in a perpendicular direction with respect to the liquid refrigerant flow path, and is configured to allow the liquid refrigerant to flow into the liquid refrigerant flow path,
a liquid refrigerant outlet portion, which is disposed in the perpendicular direction with respect to the liquid refrigerant flow path, and is configured to allow the liquid refrigerant to flow out from the liquid refrigerant flow path,
a first region, in which a plurality of fins are disposed, and in which the liquid refrigerant flows from the liquid refrigerant inlet portion to the liquid refrigerant outlet portion in a shortest distance, the first region including a linear path starting from the liquid refrigerant inlet portion and extending to the liquid refrigerant outlet portion, and
a second region, in which another plurality of fins are disposed, and which is different from the first region,
wherein a fin-mounting volume ratio of the another plurality of fins in the second region is larger than a fin-mounting volume ratio of the plurality of fins in the first region, and
wherein a region in a vicinity of the liquid refrigerant inlet portion in the first region has a smaller fin-mounting volume ratio than a region in a vicinity of the liquid refrigerant outlet portion in the first region.
2. The cooling system according to claim 1 , further comprising:
another second region,
wherein the first region is between said second region and said another second region.
3. The cooling system according to claim 2 , wherein:
the first region and the second region have substantially a same length.
4. The cooling system according to claim 1 , wherein:
the liquid refrigerant exits the liquid refrigerant inlet portion in the perpendicular direction in order to enter the first region, and the liquid refrigerant exits the liquid refrigerant inlet portion in a direction different from the perpendicular direction, in order to enter the second region.
5. The cooling system according to claim 4 , wherein:
each of the plurality of fins is a pin fin and each of the another plurality of fins is a pin fin; and
a number of the pin fins in the second region is larger than a number of the pin fins in the first region.
6. A cooling system, comprising:
a placement plate on which a plurality of components are disposed, and
a liquid refrigerant flow path, which is formed on an opposite side of the placement plate with respect to the plurality of components, and is configured to allow a liquid refrigerant for cooling the plurality of components to flow therethrough,
wherein the liquid refrigerant flow path includes:
a liquid refrigerant inlet portion, which is disposed in a perpendicular direction with respect to the liquid refrigerant flow path, and is configured to allow the liquid refrigerant to flow into the liquid refrigerant flow path,
a liquid refrigerant outlet portion, which is disposed in the perpendicular direction with respect to the liquid refrigerant flow path, and is configured to allow the liquid refrigerant to flow out from the liquid refrigerant flow path,
a first region, in which a plurality of fins are disposed, and in which the liquid refrigerant flows from the liquid refrigerant inlet portion to the liquid refrigerant outlet portion in a shortest distance, the first region including a linear path starting from the liquid refrigerant inlet portion and extending to the liquid refrigerant outlet portion, and
a second region, in which another plurality of fins are disposed, and which is different from the first region,
wherein a fin-mounting volume ratio of the plurality of fins in the first region is different from a fin-mounting volume ratio of the another plurality of fins in the second region,
wherein a region in a vicinity of the liquid refrigerant inlet portion in the first region has a smaller fin-mounting volume ratio than a region in a vicinity of the liquid refrigerant outlet portion in the first region, and
wherein the first region and the second region have substantially a same length.
7. A cooling system, comprising:
a placement plate on which a plurality of components are disposed, and
a liquid refrigerant flow path, which is formed on an opposite side of the placement plate with respect to the plurality of components, and is configured to allow a liquid refrigerant for cooling the plurality of components to flow therethrough,
wherein the liquid refrigerant flow path includes:
a liquid refrigerant inlet portion, which is disposed in a perpendicular direction with respect to the liquid refrigerant flow path, and is configured to allow the liquid refrigerant to flow into the liquid refrigerant flow path,
a liquid refrigerant outlet portion, which is disposed in the perpendicular direction with respect to the liquid refrigerant flow path, and is configured to allow the liquid refrigerant to flow out from the liquid refrigerant flow path,
a first region, in which a plurality of fins are disposed, and in which the liquid refrigerant flows from the liquid refrigerant inlet portion to the liquid refrigerant outlet portion in a shortest distance, and
a second region, in which another plurality of fins are disposed, and which is different from the first region,
wherein a fin-mounting volume ratio of the plurality of fins in the first region is different from a fin-mounting volume ratio of the another plurality of fins in the second region,
wherein a region in a vicinity of the liquid refrigerant inlet portion in the first region has a smaller fin-mounting volume ratio than a region in a vicinity of the liquid refrigerant outlet portion in the first region, and
wherein the liquid refrigerant exits the liquid refrigerant inlet portion in the perpendicular direction in order to enter the first region, and the liquid refrigerant exits the liquid refrigerant inlet portion in a direction different from the perpendicular direction, in order to enter the second region.
8. The cooling system according to claim 7 , wherein:
the first region includes a linear path starting from the inlet portion and extending to the outlet portion.