Cold plate with combined inclined impingement and ribbed channels

Patent metadata

Field	Value
Publication number	US-10244654-B2
Application number	US-201815868433-A
Country	US
Kind code	B2
Filing date	Jan 11, 2018
Priority date	Mar 8, 2012
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

Methods for making heat transfer devices include forming a jet plate with a plurality of inclined jets set at an angular deviation from normal. A bottom plate is formed with channel walls that have ribs. The jet plate is attached to the bottom plate to form ribbed channels. The angular deviation of each inclined jet establishes a jet direction perpendicular to a long dimension of the ribbed channels.

First claim

What is claimed is:

1. A method for forming a heat transfer device, comprising:
forming a jet plate with a plurality of inclined jets set at an angular deviation from normal;
forming a bottom plate with channel walls that have ribs; and
attaching the jet plate to the bottom plate to form a plurality of ribbed channels, wherein the angular deviation of each inclined jet establishes a jet direction perpendicular to a long dimension of the plurality of ribbed channels.

2. The method of claim 1 , further comprising forming one or more outlet ports in a sidewall of the bottom plate.

3. The method of claim 1 , further comprising:
forming a side cover block; and
attaching the jet plate to the side cover block.

4. The method of claim 3 , wherein attaching the jet plate to the side cover block comprises a joining process selected from the group consisting of brazing, soldering, and direct-bonding.

5. The method of claim 1 , wherein each ribbed channel has ribs on only three of four channel walls.

6. The method of claim 1 , wherein the jet plate is formed with a material with a lower thermal conductivity than a material of the bottom plate.

7. The method of claim 1 , wherein plurality of inclined jets comprises a respective plurality of inclined jets for each of the plurality of ribbed channels.

8. The method of claim 7 , wherein each respective plurality of inclined jets has a spacing between inclined jets of about three times a diameter of the inclined jets.

Assignees

• IBM

Inventors

• Parida Pritish R

Classifications

• Y10T29/49359

  Cooling apparatus making, e.g., air conditioner, refrigerator · CPC title

• Y10T29/4935

  Heat exchanger or boiler making · CPC title

• H05K7/20263

  Heat dissipaters releasing heat from coolant · CPC title

• H05K7/20218

  using a liquid coolant without phase change in electronic enclosures (in cabinets of standardized dimensions H05K7/20536; in server cabinets H05K7/20709; in vehicle electronic casings H05K7/20845; in power control electronics H05K7/2089; in displays H05K7/20954) · CPC title

• F28F2215/10

  Secondary fins, e.g. projections or recesses on main fins · CPC title