ADDITIVELY MANUFACTURED HEAT TRANSFER DEVICE
FIG9 is a cutaway isometric view of the cold plate of FIG8, cut along line 9-9
As shown in FIG9, first channel 228 includes a right side-passage 246 connected to intake port 234. A plurality of cross-passages 244 branch off at regular intervals from side-passage 246 and extend across cold plate 200 to a left side-passage 242. Left side-passage 242 extends across cold plate 200 to outtake port 238, proximate output wall 226, as shown in FIG8. FIG9 is a cutaway view of cold plate 200 along line 9-9, cut through a cross passage 244 and facing toward input wall 224. It should be noted that the rest of the plurality of cross passages 244 match the one depicted. Cross passages 244 of first channel 228 alternate with cross passages 250 of second channel 230. Each cross passage has a matching diamond cross-sectional shape, which may also be referred to as a rhombus or lozenge. Further, the plurality of cross passages 250 are vertically mirrored relative to the depicted cross passage 244, but otherwise matching the depicted cross passage. As shown in FIG9, left side-passage 242 and right side-passage 246 each have a diamond cross-sectional shape with four perpendicular sides of equal length. The diamond cross-sectional shapes of side-passages 242, 246 and cross passages 244, 250 may allow cold plate 200 to be additively manufactured without secondary supports in the inner channels. Each interior surface of first channel 228 and second channel 230 may form an angle of 45 degrees or less with a vertical line parallel to the manufacturing axis of the cold plate.
cutaway isometric view
242
left side-passage
323
outtake port
252
side-passage
214
bottom conductive wall
314
back cold plate
234
intake port
10
cold plate
312
plate plates
200
cold plate cold plates
236
intake port
310
heat source
300
system
0
than tolerance may be 1mil may be 10mil
218
external transfer surfaces external transfer surface
321
intake port
222
left wall
232
internal walls
320
apertures aperture
244
cross passage cross passages
212
top conductive wall
['1. An additively manufactured heat transfer device (10,100, 200, 312), comprising: an enclosure portion (12, 110, 210, 318) including outer walls (18, 108, 208, 324), the outer walls containing a first inner channel (14, 128, 228, 334) configured to direct flow of a coolant fluid, a first fluid intake port (32, 136, 234, 321) connected to the first inner channel, the first fluid intake port configured to direct flow of a coolant fluid through an outer wall (20A, 124, 224, 324) of the enclosure portion into the first inner channel, and a first fluid outtake port (34, 138, 238, 323) connected to the first inner channel, the first fluid outtake port configured to direct flow of a coolant fluid through an outer wall (20B, 126, 218, 324) of the enclosure portion out of the first inner channel, wherein the first inner channel is defined by internal walls (40, 132, 232, 338), the enclosure portion and the internal walls forming a single additively manufactured unit.', '5. The heat transfer device (10, 312) of any of claims 2-4, wherein the enclosure portion (12, 318) has first and second opposing heat transfer sides (26, 326, 328), the first inner channel (14, 334) being closer to the first heat transfer side than the  second heat transfer side, the second inner channel (16, 336) being closer to the second heat transfer side than the first heat transfer side.']