Combining complex flow manifold with three dimensional woven lattices as a thermal management unit

Patent metadata

Field	Value
Publication number	US-11480398-B2
Application number	US-201615161849-A
Country	US
Kind code	B2
Filing date	May 23, 2016
Priority date	May 22, 2015
Publication date	Oct 25, 2022
Grant date	Oct 25, 2022

Abstract

The present invention is directed to a manifold for directing cooling fluid and/or gas to a heat exchanger in a flow configuration designed to optimize heat transfer from the heat exchanger. The manifold can take many different forms such as a layered construction with distributed inlet paths, local outlet paths, a central collection changer and a path for fluid removal. The manifold can be formed from a metal, plastic, rubber, ceramic, or other heat resistant material known to or conceivable by one of skill in the art. The manifold can also be combined with any type of heat exchanger known to or conceivable by one of skill in the art to form a thermal management unit. To optimize overall properties such as low pressure drop, high heat transfer, and excellent temperature uniformity of the thermal management unit, the manifold can be graded, expanded and scaled as needed.

First claim

The invention claimed is:

1. A thermal management unit, comprising:
a heat exchange device,
wherein the heat exchange device is comprised of lattice materials, and
wherein the heat exchange device is disposed adjacent to a bottom surface of a manifold to thereby increase temperature uniformity of a distributed array flow pattern associated with the thermal management unit; and

the manifold, comprising:
a body having a top surface and the bottom surface;
a set of inlet channels,
wherein the set of inlet channels are configured as columns that extend from the top surface to the bottom surface, without extending beyond the bottom surface to thereby increase temperature uniformity of the distributed array flow pattern associated with the thermal management unit,
wherein an interior of the manifold extending from the bottom surface to the top surface between inlet channels, of the set of inlet channels, is hollow,
wherein the set of inlet channels are open from the top surface to receive fluid,
wherein the fluid is received only through the top surface, and
wherein the fluid is to flow out of the bottom surface of the manifold and into the heat exchange device to locally cool the heat exchange device;

a set of exhaust openings configured to receive the fluid from the heat exchange device,
wherein the set of exhaust openings are disposed on the bottom surface and interspersed between the set of inlet channels so as to direct the fluid back into the hollow interior of the manifold through the set of exhaust openings, and
wherein the fluid exits the interior of the manifold along side edges of the manifold.

2. The thermal management unit of claim 1 , wherein the manifold is formed from one chosen from a group consisting of a non-metal, such as a polymer or a ceramic, a mixture of materials, and different materials used in different portions of the manifold.

3. The thermal management unit of claim 1 , wherein the manifold is additive manufactured with plastics.

4. The thermal management unit of claim 1 , wherein diameters of the set of inlet channels and the set of exhaust openings are the same or different.

5. The thermal management unit of claim 1 , wherein the fluid is at least one of:
water,
air, or
other coolants.

6. The thermal management unit of claim 1 , wherein the manifold is repeated and expanded in three directions to cool multiple surfaces of the heat exchange device.

7. The thermal management unit of claim 1 , wherein the manifold is placed with gradients in three directions.

8. The thermal management unit of claim 1 , wherein the set of inlet channels are one of:
straight,
curved, or
waved.

9. The thermal management unit of claim 1 , wherein the set of inlet channels and the set of exhaust openings are configured to one of:
intersect at a joint connection, or
be independent of each other.

10. The thermal management unit of claim 6 , wherein angles between the set of inlet channels and the set of exhaust openings include any angle between 0 degrees (parallel) to 90 degrees (perpendicular) in the three directions to cool the multiple surfaces of the heat exchange device.

11. The thermal management unit of claim 1 , wherein topology optimization is performed so as to design the manifold with properties that are optimized in one or more directions.

12. The thermal management unit of claim 1 , wherein fluid flow within the manifold can be designed so as to also optimize thermal conductivity, electrical conductivity, mechanical strength, material density, energy absorption, or damping properties required for fluid flow applications.

13. The thermal management unit of claim 1 , wherein the set of exhaust openings extend from the bottom surface to the interior of the manifold.

14. The thermal management unit of claim 1 , wherein the set of exhaust openings open into the hollow interior of the manifold.

15. The thermal management unit of claim 1 , wherein the set of exhaust openings open into the hollow interior of the manifold so as to allow the fluid to flow around the inlet channels after the fluid is directed back into the hollow interior of the manifold.

16. The thermal management unit of claim 1 , further comprising:
a gasket with a pattern of first holes that match a pattern of second holes associated with the inlet channels and the set of exhaust opening,
wherein the gasket is configured to be between the heat exchange device and the manifold.

17. The thermal management unit of claim 1 , wherein the lattice materials are topology-optimized by selectively eliminating one or more wires in two Cartesian directions to enhance permeability with minimal reductions in mechanical stiffness.

18. A thermal management unit, comprising:
a heat exchange device,
wherein the heat exchange device is comprised of lattice materials, and
wherein the heat exchange device is disposed adjacent to a bottom surface of a manifold to thereby increase temperature uniformity of a distributed array flow pattern associated with the thermal management unit; and

the manifold, comprising:
a body having a top surface and the bottom surface;
a set of inlet channels,
wherein the set of inlet channels are configured as columns that extend from the top surface to the bottom surface, without extending beyond the bottom surface to thereby increase temperature uniformity of the distributed array flow pattern associated with the thermal management unit,
wherein an interior of the manifold extending from the bottom surface to the top surface between inlet channels, of the set of inlet channels, is hollow,
wherein the set of inlet channels are open from the top surface to receive fluid,
wherein the fluid is received only through the top surface, and
wherein the fluid is to flow out of the bottom surface of the manifold and into the heat exchange device to locally cool the heat exchange device; and

a set of exhaust openings are configured to receive the fluid from the heat exchange device,
wherein the set of exhaust openings are disposed on the bottom surface and interspersed between the set of inlet channels so as to direct the fluid back into the hollow interior of the manifold through the set of exhaust openings, and
wherein the fluid exits the interior of the manifold along side edges of the manifold.

19. The thermal management unit of claim 18 , wherein the manifold is formed from a metal.

20. The thermal management unit of claim 18 , wherein the manifold is formed from one chosen from a group consisting of a non-metal, such as thermoplastic or ceramic, a mixture of materials, and different materials used in different portions of the manifold.

21. The thermal management unit of claim 18 , wherein the manifold is additive manufactured with metals.

22. The thermal management unit of claim 18 , wherein the manifold is additive manufactured with plastics.

23. The thermal management unit of claim 18 , wherein diameters of the set of inlet channels and the set of exhaust openings are a same or different.

24. The thermal management unit of claim 18 , wherein the fluid is at least one of:
water,
air, or
other coolants.

25. The thermal management unit of claim 18 , wherein the manifold is repeated and expanded in three directions to cool multiple surfaces of the heat exchange device.

26. The thermal management unit of claim 18 , wherein the manifold is placed with gra

Assignees

• Univ Johns Hopkins

Inventors

• Hemker Kevin J
• Weihs Timothy P
• Ryan Stephen
• Zhao Longyu
• Ha Seunghyun
• Zhang Yong
• Guest James K

Classifications

• F28F9/02 Primary

  Header boxes; End plates · CPC title

• F28F21/067

  Details · CPC title

• F28F13/00

  Arrangements for modifying heat-transfer, e.g. increasing, decreasing (F28F1/00 - F28F11/00 take precedence) · CPC title