Cooling device and surface emitting device comprising same
First Claim
1. A cooling device wherein planar cooling units, on which heat-generating electronic parts to be cooled are mounted, are stacked parallel from a first end to a second end along an axis, said cooling units comprising first cooling units and second cooling units,wherein each of said first cooling units includes, at least one first opening which opens to a first cooling liquid supply passage passing through a first portion transverse of the axis of at least two of said stacked cooling units to supply cooling liquid to each of said parts to be cooled, and at least one second opening which opens to a first cooling liquid discharge passage passing through a second different transverse portion of at least two of said stacked cooling units to discharge to outside of the cooling device said cooling liquid that has cooled each of said parts, wherein each of said second cooling units includes, at least one third opening which opens to the first cooling liquid supply passage, at least one fourth opening which opens to the first cooling liquid discharge passage, and at least one fifth opening which opens to a second cooling liquid supply passage which is different from said first cooling liquid supply passage and which passes through a third different transverse portion of at least two of said stacked cooling units and is in fluid communication with said first cooling liquid supply passage, and through which the cooling liquid is supplied from outside of the cooling device, and wherein a length of said second cooling unit is greater than a corresponding length of said first cooling unit, so that said second cooling unit has an extended portion which extends beyond said first cooling unit.
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Accused Products
Abstract
A cooling device is provided wherein are stacked cooling units on which laser diode arrays are mounted, comprising intake openings provided such that they pass through first portions in the cooling units in order to conduct cooling liquid about the peripheries of each of the laser diode arrays, outlet openings provided such that they pass through second portions of the cooling units in order to discharge to the outside of the cooling device the cooling liquid that has cooled each of the laser diode arrays, and inflow openings that pass through third portions in the cooling units, and are connected to the intake openings, and through which cooling liquid is supplied from the outside.
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Citations
16 Claims
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1. A cooling device wherein planar cooling units, on which heat-generating electronic parts to be cooled are mounted, are stacked parallel from a first end to a second end along an axis, said cooling units comprising first cooling units and second cooling units,
wherein each of said first cooling units includes, at least one first opening which opens to a first cooling liquid supply passage passing through a first portion transverse of the axis of at least two of said stacked cooling units to supply cooling liquid to each of said parts to be cooled, and at least one second opening which opens to a first cooling liquid discharge passage passing through a second different transverse portion of at least two of said stacked cooling units to discharge to outside of the cooling device said cooling liquid that has cooled each of said parts, wherein each of said second cooling units includes, at least one third opening which opens to the first cooling liquid supply passage, at least one fourth opening which opens to the first cooling liquid discharge passage, and at least one fifth opening which opens to a second cooling liquid supply passage which is different from said first cooling liquid supply passage and which passes through a third different transverse portion of at least two of said stacked cooling units and is in fluid communication with said first cooling liquid supply passage, and through which the cooling liquid is supplied from outside of the cooling device, and wherein a length of said second cooling unit is greater than a corresponding length of said first cooling unit, so that said second cooling unit has an extended portion which extends beyond said first cooling unit.
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11. A surface light emitting device wherein planar laser diode arrays to be cooled are mounted on cooling units and are stacked parallel from a first end to a second end along an axis, said cooling units comprising:
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first cooling units and second cooling units, wherein each of said first cooling units includes, at least one first opening which opens to a first cooling liquid supply passage passing through a first portion transverse of the axis of at least two of the stacked cooling units to supply cooling liquid to each of said laser diode arrays to be cooled, and at least one second opening which opens to a first cooling liquid discharge passage passing through a second different transverse portion of at least two of said cooling units to discharge to outside of the cooling device said cooling liquid that has cooled each of said laser diode arrays, wherein each of said second cooling units includes, at least one third opening which opens to the first cooling liquid supply passage, at least one fourth opening which opens to the cooling liquid discharge passage, and at least one fifth opening which opens to a second cooling liquid supply passage which is different from said first cooling liquid supply passage and which passes through a third different transverse portion of at least two of the stacked cooling units and is in fluid communication with said first cooling liquid supply passage, and through which the cooling liquid is supplied from outside of the cooling device, and wherein a length of said second cooling unit is greater than a corresponding length of said first cooling unit, so that said second cooling unit has an extended portion which extends beyond said first cooling unit. - View Dependent Claims (12, 13)
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Specification