Phase-separated evaporator, blade-thru condenser and heat dissipation system thereof

• US 20080030956A1
• Filed: 05/05/2007
• Published: 02/07/2008
• Est. Priority Date: 07/30/2005
• Status: Active Grant

• Current Assignee: Articchoke Enterprises, LLC
• Original Assignee: Articchoke Enterprises, LLC
• Inventors: Husher, Frederick, Silverstein, Paul, Shum, Jee
• Granted Patent: US 7,450,386 B2
• Time in Patent Office: Days
• US Class Current: 361/700
• CPC Class Codes: F25B 23/006 boiling cooling systems
• CPC Class Codes: F25B 39/00 Evaporators; Condensers
• CPC Class Codes: F28D 15/0266 with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers F28D15/043 takes precedence
• CPC Class Codes: H01L 23/427 Cooling by change of state, e.g. use of heat pipes by liquefied gas H01L23/445
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

A phase-separated evaporator includes a boiler plate and a phase separation chamber that includes a housing, connected to the boiler plate, having a gas port and a liquid port; and a phase partitioner connected to interiors of the housing, dividing the phase-separated evaporator into a vapor directing compartment and a condensate directing compartment. The phase partitioner includes a partition panel and multiple feeding injectors extending from the partition panel, with the injector tips disposed immediately above the boiler plate. The returning condensate from a condenser enters from the liquid port into the condensate directing compartment and feeds onto the boiler plate through the feeding injectors; while the vapor generated in the vapor directing compartment exits from the gas port, without encountering the condensate. Further disclosed are a high efficiency heat dissipation system utilizing the phase-separated evaporator and a blade-thru condenser, and a computer system utilizing the heat dissipation system.

Claims

1. A phase-separated evaporator comprising:

(a) a boiler plate; and

(b) a phase separation chamber comprising;

(i) a housing having a base connected to said boiler plate;

said housing having a liquid port and a gas port; and

(ii) a phase partitioner connected to interiors of said housing, dividing said phase-separated evaporator into a condensate directing compartment and a vapor directing compartment;

said condensate directing compartment being in communication with said liquid port, and said vapor directing compartment being in communication with said gas port.

2. The phase-separated evaporator of claim 1, wherein said phase partitioner includes a partition panel and a plurality of feeding injectors extending from a lower surface of said partition panel toward an upper surface of said boiler plate.

3. The phase-separated evaporator of claim 2, wherein each of said feeding injectors has an injector inlet and an opposing injector tip;

and said injector tip is disposed immediately above said upper surface of said boiler plate.

4. The phase-separated evaporator of claim 2, wherein said partition panel has an opening for balancing pressure between said condensate directing compartment and said vapor directing compartment.

5. The phase-separated evaporator of claim 2, wherein said liquid port and said gas port are positioned on a side wall of said housing;

and said liquid port is disposed between a top wall of said housing and said partition panel, and said gas port is disposed between said partition panel and said boiler plate.

6. The phase-separated evaporator of claim 1, wherein a top wall of said housing and said partition panel incline along a longitudinal axis of said phase separation chamber toward said boiler plate;

and said partition panel is substantially in parallel with said top wall.

7. The phase-separated evaporator of claim 3, wherein said upper surface of said boiler plate is coated with a micro porous coating material.

8. The phase-separated evaporator of claim 7, wherein said upper surface of said boiler plate comprises a plurality of pins extending upward therefrom.

9. The phase-separated evaporator of claim 8, wherein said injector tips are disposed in spaces among said plurality of pins of said boiler plate.

10. The phase-separated evaporator of claim 8, wherein said boiler plate comprises a plurality of landing zones on said upper surface in spaces among said pins, surfaces of said landing zones being substantially free of said micro porous coating material;

and said injector tips are disposed immediately above said landing zones.

11. The phase-separated evaporator of claim 1, wherein said phase partitioner and said housing are made of a thermal-insulating material.

12. The phase-separated evaporator of claim 1, wherein a top wall of said housing has an inclined section covering substantially an upper surface of said boiler plate along a longitudinal axis of said phase separation chamber, and a port section adjacent to, and vertically extending above, said inclined section;

and said liquid port and said gas port are positioned on top of said port section.

13. The phase-separated evaporator of claim 12, wherein said partition panel includes an inclined panel substantially in parallel with said inclined section of said top wall of said housing and a vertical section extending from one end of said inclined panel upwardly within said port section;

and said inclined panel comprises a plurality of feeding injectors extending therefrom toward said boiler plate.

14. A heat dissipation system comprising:

(a) a phase-separated evaporator, comprising;

(i) a boiler plate; and

(ii) a phase separation chamber comprising a housing and a phase partitioner;

said housing having a base connected to said boiler plate and having a liquid port and a gas port; and

said phase partitioner being connected to interiors of said housing, dividing said phase-separated evaporator into a condensate directing compartment and a vapor directing compartment;

said condensate directing compartment being in communication with said liquid port, and said vapor directing compartment being in communication with said gas port;

(b) a condenser;

(c) a vapor conduit connected between said gas port of said evaporator and an input interface of said condenser; and

(d) a condensate conduit connected between an output interface of said condenser and said liquid port of said evaporator.

15. The heat dissipation system of claim 14 further comprising a fan positioned adjacent to said condenser, for removing hot air released from said condenser.

16. The heat dissipation system of claim 14, wherein said condenser is a tube and blade condenser.

17. The heat dissipation system of claim 14, wherein said condenser is a blade-thru condenser.

18. The heat dissipation system of claim 17, wherein said blade-thru condenser comprises:

(a) a condenser core comprising multiple substantially planar blades, each of said multiple blades having at least one chamber formed monolithically therein, a floor of said chamber having at least one aperture;

said multiple blades joined in parallel alignment, with said apertures positioned to permit vapor and condensate to pass through said apertures;

(b) an input interface; and

(c) an output interface.

19. The heat dissipation system of claim 18, wherein said apertures include at least one reed.

20. The heat dissipation system of claim 17, wherein said blade-thru condenser comprises:

(a) a condenser core comprising multiple substantially planar blades joined in parallel by one or more spacer rings disposed between two adjacent blades;

each of said blades comprising one or more chambers formed within interiors of said spacer rings;

a floor of said one or more chambers having at least one aperture, said chambers of said multiple blades in alignment to permit vapor and condensate to pass through said apertures;

(b) an input interface; and

(c) an output interface.

21. The heat dissipation system of claim 20, wherein said floor of said chamber and a rest of said blades are monolithic.

22. A computer system comprising:

(a) a housing;

(b) a motherboard comprising a central processing unit (CPU) and input and output interfaces;

(c) a fan disposed within said housing; and

(d) a heat dissipation system comprising a phase-separated evaporator, a condenser, and a coolant hermetically sealed therein;

said phase-separated evaporator comprising;

(i) a boiler plate being in a direct contact with a heat generating component of said computer; and

(ii) a phase separation chamber comprising a housing and a phase partitioner;

said housing having a base connected to said boiler plate and having a liquid port and a gas port; and

said phase partitioner being connected to interiors of said housing, dividing said phase-separated evaporator into a condensate directing compartment and a vapor directing compartment;

said condensate directing compartment being in communication with said liquid port, and said vapor directing compartment being in communication with said gas port.

23. The computer system of claim 22, wherein said condenser comprises a condenser core comprising multiple substantially planar blades, each of said multiple blades having at least one chamber formed monolithically therein, a floor of said chamber having at least one aperture;

said multiple blades jointed in parallel alignment, with said apertures positioned to permit vapor and condensate to pass through said apertures.

24. The computer system of claim 22, wherein said heat generating component comprises said CPU, memory controller, memory chip, graphics processor, or power chip.