Patent ID: 8746330

Claim:
A fluid heat exchanger comprising: a heat spreader plate defining an upper surface; a plurality of fins extending from respective proximal ends positioned adjacent the upper surface of the heat spreader plate to respective distal ends positioned distally from the upper surface of the heat transfer plate, wherein the plurality of fins defines a corresponding plurality of microchannels configured to direct a heat transfer fluid over the heat spreader plate, wherein each microchannel in the plurality of microchannels has a first end and an opposite end, wherein each microchannel in the plurality of microchannels extends substantially parallel with each other microchannel in the plurality of microchannels and has a continuous channel flow path between its respective first end and its respective opposite end; a plate positioned over the distal ends of the plurality of fins and the corresponding plurality of microchannels to close off the plurality of microchannels adjacent the distal ends of the plurality of fins, wherein the plate positioned over the plurality of distal fin ends defines an elongate fluid inlet opening overlying and extending transversely relative to the plurality of microchannels between the plurality of microchannel first ends and opposite ends, wherein the plate is so positioned over the plurality of fins as to define a first fluid outlet opening from each microchannel in the plurality of microchannels at each of the microchannel first ends and an opposite fluid outlet opening from each microchannel in the plurality of microchannels at each of the microchannel opposite ends; a housing spaced from the plate positioned over the plurality of distal fin ends, wherein the housing defines an inlet and an outlet, wherein the inlet defined by the housing opens to an inlet header and at least the first fluid outlet opening from each microchannel in the plurality of microchannels opens to an outlet header, wherein the outlet defined by the housing opens from the outlet header; and a seal extending between the housing and the plate positioned over the plurality of distal fin ends, wherein the elongate fluid inlet opening defined by the plate extends between a proximal end and a distal end, wherein a region of the inlet header is positioned adjacent a first side of the fins and a region of the outlet header is positioned adjacent the second side of the fins, and wherein the fins, the plate, the housing, and the seal are arranged such that the heat transfer fluid is directed from the inlet opening to the inlet header, through the elongate fluid inlet opening defined by the plate and into the microchannels, from the microchannels to the outlet header, and from the outlet header to the outlet defined by the housing.