Electronics cooling with multi-phase heat exchange and heat spreader

Patent metadata

Field	Value
Publication number	US-11035621-B2
Application number	US-201916431870-A
Country	US
Kind code	B2
Filing date	Jun 5, 2019
Priority date	Jun 21, 2016
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

One example aspect of the present disclosure is directed to a system for cooling a surface. The system can include a housing. The housing can include an evaporator portion. The housing can include at least one trifurcated heat exchange portion. The at least one trifurcated heat exchange portion can include a condenser portion coupled to the evaporator portion. The at least one trifurcated heat exchange portion can include a coolant portion substantially surrounded by the condenser portion. The at least one trifurcated heat exchange portion can include a phase change material portion substantially surrounding the condenser portion.

First claim

What is claimed is:

1. A multi-domain heat exchanger, comprising:
a coolant portion defining a coolant domain therein;
a condenser portion surrounding the coolant portion, the condenser portion and the coolant portion defining a condenser domain therebetween;
a housing surrounding the condenser portion, the housing and the condenser portion defining a phase change material domain therebetween; and
an evaporator portion defining a vapor chamber, the vapor chamber fluidly communicating with the condenser domain;
wherein the coolant portion, the condenser portion, and the housing define an array of unit cells, the array of unit cells separating the coolant domain from the condenser domain and separating the condenser domain from the phase change material domain.

2. The multi-domain heat exchanger of claim 1 , wherein the coolant portion comprises hydrodynamic furcations that divide the coolant domain.

3. The multi-domain heat exchanger of claim 1 , wherein the condenser portion comprises hydrodynamic furcations that divide the condenser domain and/or the phase change material domain.

4. The multi-domain heat exchanger of claim 1 , comprising:
a plurality of nested furcated domains, the plurality of nested furcated domains defined at least in part by the coolant portion and the condenser portion.

5. The multi-domain heat exchanger of claim 4 , wherein the plurality of nested furcated domains comprises the coolant domain, the condenser domain, and the phase change material domain.

6. The multi-domain heat exchanger of claim 1 , wherein the condenser portion comprises a wicking structure.

7. The multi-domain heat exchanger of claim 1 , comprising:
a vacuum shroud surrounding at least a portion of the housing, the vacuum shroud and the housing defining a vacuum domain therebetween.

8. A cooling system, comprising:
an evaporator section defining a vapor chamber;
a condenser section defining a condenser domain, the condenser section operably coupled to the evaporator section, the condenser section comprising a multi-domain heat exchanger, the multi-domain heat exchanger comprising:
a coolant portion defining a coolant domain therein;
a condenser portion surrounding the coolant portion, the condenser portion and the coolant portion defining a condenser domain therebetween, the condenser domain fluidly communicating with the vapor chamber; and
a housing surrounding the condenser portion, the housing and the condenser portion defining a phase change material domain therebetween;
wherein the coolant portion, the condenser portion, and the housing define an array of unit cells, the array of unit cells separating the coolant domain from the condenser domain and separating the condenser domain from the phase change material domain.

9. The cooling system of claim 8 , wherein the coolant portion comprises hydrodynamic furcations that divide the coolant domain.

10. The cooling system of claim 8 , wherein the condenser portion comprises hydrodynamic furcations that divide the condenser domain and/or the phase change material domain.

11. The cooling system of claim 8 , comprising:
a plurality of nested furcated domains, the plurality of nested furcated domains defined at least in part by the coolant portion and the condenser portion.

12. The cooling system of claim 11 , wherein the plurality of nested furcated domains comprises the coolant domain, the condenser domain, and the phase change material domain.

13. The cooling system of claim 8 , wherein the condenser portion comprises a wicking structure.

14. The cooling system of claim 8 , comprising:
a vacuum shroud surrounding at least a portion of the housing, the vacuum shroud and the housing defining a vacuum domain therebetween.

15. A method of cooling a component, the method comprising:
evaporating working fluid with an evaporator section defining a vapor chamber, transferring heat from the evaporator section to evaporating working fluid in the vapor chamber;
condensing working fluid with a condenser section defining a condenser domain, transferring heat from the condensing working fluid to the condenser section, the condenser section operably coupled to the evaporator section, the condenser section comprising a multi-domain heat exchanger, the multi-domain heat exchanger comprising:
a coolant portion defining a coolant domain therein;
a condenser portion surrounding the coolant portion, the condenser portion and the coolant portion defining a condenser domain therebetween, the condenser domain fluidly communicating with the vapor chamber; and
a housing surrounding the condenser portion, the housing and the condenser portion defining a phase change material domain therebetween;
wherein the coolant portion, the condenser portion, and the housing define an array of unit cells, the array of unit cells separating the coolant domain from the condenser domain and separating the condenser domain from the phase change material domain.

16. The method of claim 15 , comprising:
flowing evaporated working fluid from the evaporator section to the condenser section at least in part using a pressure gradient between the evaporator section and the condenser section.

17. The method of claim 15 , comprising:
flowing condensed working fluid from the condenser section to the evaporator section at least in part using capillary force provided by a wicking structure in the condenser domain.

18. The method of claim 15 , wherein the coolant portion and the condenser portion define at least a portion of a plurality of nested furcated domains.

19. The method of claim 18 , wherein the plurality of nested furcated domains comprises the coolant domain, the condenser domain, and the phase change material domain.

20. The method of claim 15 , thermally insulating at least a portion of the array of unit cells using a vacuum shroud surrounding at least a portion of the housing, the vacuum shroud and the housing defining a vacuum domain therebetween.

Assignees

• Ge Aviation Systems Llc

Inventors

• Lassini Stefano
• Rush Brian
• Erno Daniel
• Gerstler William Dwight

Classifications

• H10W40/73

  for cooling by change of state · CPC title

• F28D15/0233

  the conduits having a particular shape, e.g. non-circular cross-section, annular (F28D15/0241, F28D15/0266 take precedence) · CPC title

• F28D15/0275

  Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores · CPC title

• F28D15/04 Primary

  with tubes having a capillary structure · CPC title

• F28F1/045

  with assemblies of stacked elements · CPC title