IP Library Granted Patent US 7,621,143
Granted Patent B2
US 7,621,143 · App. 11/536,245 · Granted Nov 24, 2009

Cooling systems

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Quick Facts
Patent No.
US 7,621,143
App. No.
11/536,245
Granted
Nov 24, 2009
Kind
B2
Abstract

A self contained cooling system which is amenable to miniaturization so as to accommodate space and connectivity restrictions implicit in computer and other electronics apparatus while enhancing heat transfer. In use, the cooling systems of this invention use compression/expansion cycles of a refrigerant material to move thermal energy from one location to another. The compressor, condenser, and evaporator are all contained within a volume consistent with mounting directly on a semiconductor device such as a processor.

Claims (34)

1. An apparatus, comprising:

a heat generating semiconductor chip; and

a self contained refrigeration device mounted adjacent to and in heat transfer relation to said chip; wherein the refrigeration device includes:

a compressor, and the compressor includes a housing, at least one trilobal impeller comprising a magneto ceramic body and mounted within said housing, and a plurality of electrically conductive coils interacting with said body;

an evaporator in heat transfer relation to said chip; and

a condenser;

wherein said evaporator, compressor and condenser are configured to conduct a flow of a refrigerant medium there amongst.

2. The apparatus according to claim 1 wherein said refrigeration device is a Carnot cycle refrigeration device.

3. The apparatus according to claim 1 wherein said refrigeration device is an electro mechanical refrigeration device.

4. The apparatus according to claim 1 further comprising a heat sink thermally coupled to said condenser.

5. The apparatus according to claim 4 further comprising an air handler operatively associated with said heat sink for impelling a flow of air across said heat sink.

6. The apparatus according to claim 1 wherein said at least one trilobal impeller comprises a plurality of trilobal impellers mounted within said housing, and a coupling joining said plurality of impellers together so that vibrational forces otherwise generated by rotation thereof are counterbalanced.

7. An apparatus, comprising:

a computer system; a heat generating semiconductor chip mounted in said computer system; and

a self contained refrigeration device mounted in said computer system adjacent to and in heat transfer relation to said chip; wherein the self contained refrigeration device includes:

a compressor, and the compressor includes a housing, at least one trilobal impeller comprising a magneto ceramic body and mounted within said housing, and a plurality of electrically conductive coils interacting with said body;

an evaporator in heat transfer relation to said chip; and

a condenser;

wherein said evaporator, compressor and condenser are configured to conduct a flow of a refrigerant medium there amongst.

8. The apparatus according to claim 7 wherein said refrigeration device is a Carnot cycle refrigeration device.

9. The apparatus according to claim 7 wherein said refrigeration device is an electro mechanical refrigeration device.

10. The apparatus according to claim 7 further comprising a heat sink thermally coupled to said condenser.

11. The apparatus according to claim 10 further comprising an air handler operatively associated with said heat sink for impelling a flow of air across said heat sink.

12. The apparatus according to claim 7 wherein said at least one trilobal impeller comprises a plurality of trilobal impellers mounted within said housing, and a coupling joining said plurality of impellers together so that vibrational forces otherwise generated by rotation thereof are counterbalanced.

13. An apparatus, comprising:

an evaporator element;

a condenser element; and

a compressor coupled with said evaporator and condenser for circulating a refrigerant material there amongst;

said compressor having an housing, a magneto ceramic trilobal rotor mounted within said housing, and a plurality of electromagnetic coils disposed about said rotor and magnetically coupled thereto.

14. An apparatus, comprising:

an evaporator element;

a condenser element; and

a compressor coupled with said evaporator and condenser for circulating a refrigerant material there amongst;

said compressor having an housing, a plurality of trilobal rotors mounted within said housing, and mechanism coupling said plurality of rotors together for coordinated rotation so that vibrational forces otherwise generated by rotation thereof are counterbalanced.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 10, 2025
From: LENOVO PC INTERNATIONAL LIMITED
To: LENOVO SWITZERLAND INTERNATIONAL GMBH
Reel/Frame 069870/0670 →
NUNC PRO TUNC ASSIGNMENT Recorded Nov 25, 2015
From: LENOVO (SINGAPORE) PTE LTD.
To: LENOVO PC INTERNATIONAL
Reel/Frame 037160/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 28, 2006
From: FARROW, TIMOTHY SAMUEL; MAKLEY, ALBERT VINCENT
To: LENOVO(SINGAPOER) PTE.LTD.
Reel/Frame 018320/0707 →