# US 7,607,470 B2 · Synthetic jet heat pipe thermal management system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,607,470 B2 - Document ID: US7607470B2 - Status: Granted - Kind: B2 - Application number: 11/599,628 - Filed: 2006-11-13 - Published: 2007-05-31 - Granted: 2009-10-27 - Earliest claimed: 2005-11-14 - Assignees: Nuventix, Inc. - Inventors: Ari Glezer; Raghavendran Mahalingam; Samuel Heffington - Web page: https://patentgrep.com/patent/US7607470B2 ## CPC - H10W 40/73: for cooling by change of state - 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)} - F28F 3/02: Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations (F28F3/08 takes precedence) - F28F 2250/08: Fluid driving means, e.g. pumps, fans - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 - F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general) - F28F: DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION (water and air traps, air venting F16) ## Abstract A thermal management system (201) is provided which comprises a first heat spreader (205) comprising a heat pipe material, a plurality of fins (217) disposed on said first heat spreader, and a synthetic jet actuator (209) adapted to direct a synthetic jet between at least a pair of said plurality of fins. ## Claims ### Claim 1 A thermal management system, comprising: a first heat spreader comprising a heat pipe; a plurality of fins disposed on said first heat spreader; a synthetic jet actuator which is centrally disposed with respect to said plurality of fins and which is adapted to direct a synthetic jet between adjacent ones of said plurality of fins; and a second heat spreader disposed about the exterior of said synthetic jet actuator. ### Claim 2 (depends on 1) The thermal management system of claim 1, wherein said heat pipe is flat. ### Claim 3 (depends on 1) The thermal management system of claim 1, wherein said second heat spreader is equipped with at least one rib. ### Claim 4 (depends on 3) The thermal management system of claim 3, wherein said rib is equipped with at least one aperture. ### Claim 5 (depends on 4) The thermal management system of claim 4, wherein said synthetic jet actuator is equipped with at least one nozzle, and wherein said aperture is aligned with said nozzle. ### Claim 6 (depends on 4) The thermal management system of claim 4, wherein said rib is equipped with a plurality of apertures, wherein said synthetic jet actuator is equipped with a plurality of nozzles, and wherein each of said plurality of apertures is aligned with one of said plurality of nozzles. ### Claim 7 (depends on 1) The thermal management system of claim 1, wherein said second heat spreader is equipped with a plurality of ribs, and wherein said plurality of ribs extend from said synthetic jet actuator. ### Claim 8 (depends on 1) The thermal management system of claim 1, wherein said synthetic jet actuator is rectangular. ### Claim 9 (depends on 1) The thermal management system of claim 1, wherein said synthetic jet actuator is annular. ### Claim 10 (depends on 1) The thermal management system of claim 1, wherein said synthetic jet actuator is equipped with at least one nozzle, wherein said second heat spreader is equipped with at least one aperture, and wherein said at least one aperture is aligned with said at least one nozzle. ### Claim 11 (depends on 10) The thermal management system of claim 10, wherein said second heat spreader is equipped with a plurality of apertures, wherein said synthetic jet actuator is equipped with a plurality of nozzles, and wherein each of plurality of apertures is aligned with one of said plurality of nozzles. ### Claim 12 (depends on 1) The thermal management system of claim 1, wherein said plurality of fins comprise a thermally conductive material. ### Claim 13 (depends on 1) The thermal management system of claim 1, wherein said plurality of fins are oriented essentially orthogonal to said first heat spreader. ### Claim 14 (depends on 13) The thermal management system of claim 13, wherein said plurality of fins are further equipped with a scaffolding element that extends across said synthetic jet actuator and which provides support for said plurality of fins. ### Claim 15 (depends on 1) The thermal management system of claim 1, wherein said system further comprises at least one fin module mounted on said first heat spreader, wherein said fin module comprises first and second fin elements that extend away from said first heat spreader, and wherein said first and second fin elements are joined together by a third fin element that is oriented essentially parallel to said first heat spreader. ### Claim 16 (depends on 15) The thermal management system of claim 15, wherein said third fin element is equipped with a first aperture, and wherein said synthetic jet actuator is equipped with a first nozzle aligned with said first aperture such that a first synthetic jet is directed between the first and second fin elements when the actuator is operated. ### Claim 17 (depends on 16) The thermal management system of claim 16, wherein said first heat spreader is equipped with second and third apertures oriented adjacent to said first and second fin elements, respectively, and wherein said synthetic jet actuator is equipped with second and third nozzles aligned with said second and third apertures such that second and third synthetic jets are directed along a major surface of said first and second fin elements, respectively, when the actuator is operated. ### Claim 18 (depends on 1) The thermal management system of claim 1, wherein said synthetic jet actuator is equipped with a plurality of notches that engage said plurality of fins. ### Claim 19 (depends on 1) The thermal management system of claim 1, wherein said synthetic jet actuator is equipped with a plurality of notches that engage said fins. ### Claim 20 (depends on 1) The thermal management system of claim 1, wherein said system is further equipped with a square sinusoidal frame that supports said fins. ### Claim 21 A thermal management system, comprising: a first heat spreader which comprises a heat pipe; a second heat spreader which is equipped with at least one rib, wherein said at least one rib is equipped with at least one aperture which extends therethrough; a fin disposed on said first heat spreader; and a synthetic jet actuator which is equipped with a plurality of jet orifices and which is adapted to direct a synthetic jet from one of said plurality of jet orifices and along a major surface of said fin; wherein at least one of said at least one apertures is aligned with at least one of said plurality of jet orifices.