Synthetic Jet Ejector For The Thermal Management of PCI Cards
A method for constructing a thermal management system is provided herein. In accordance with the method, a fan ( 405 ) is provided which is adapted to provide a global flow of fluid through the device. A synthetic jet ejector ( 409 ) is also provided which is adapted to augment the global flow of fluid over the surfaces of a heat sink ( 403 ). The ratio of the flow per unit time of the synthetic jet ejector to the flow per unit time of the fan is selected so as to achieve a desired level of heat dissipation.
1 - 9 . (canceled)
10 . An add-on card, comprising:
a card substrate;
a heat sink mounted on a first surface of said card substrate; and
a synthetic jet ejector disposed on said card substrate and being adapted to direct a plurality of synthetic jets toward said heat sink.
11 . The add-on card of claim 10 , wherein said synthetic jet ejector is disposed adjacent to said heat sink.
12 . The add-on card of claim 10 , wherein said heat sink comprises a plurality of fins, wherein said synthetic jet ejector is equipped with a plurality of nozzles, and wherein each of said plurality of nozzles is adapted to direct a synthetic jet between a pair of said plurality of fins.
13 . The add-on card of claim 10 , wherein most of the circuitry is disposed on a second surface of said card substrate.
14 . The add-on card of claim 10 , wherein said synthetic jet ejector is mounted on a substrate by way of at least one flange.
15 . The add-on card of claim 14 , wherein said at least one flange is secured to said substrate by way of a fastener which releasably engages a feature provided on said substrate, and wherein said flange, fastener and feature are adapted to orient the synthetic jet ejector on said substrate such that said actuator will direct a plurality of synthetic jets toward said heat sink.
16 . The add-on card of claim 10 , wherein said synthetic jet ejector is adapted to direct a plurality of synthetic jets in a plurality of directions.
17 . The add-on card of claim 10 , wherein said synthetic jet ejector is adapted to direct a plurality of synthetic jets radially.
18 . The add-on card of claim 10 , wherein said synthetic jet ejector comprises first and second actuators.
19 . The add-on card of claim 18 , wherein said first and second actuators are electromagnetic actuators.
20 . The add-on card of claim 18 , wherein said first and second actuators comprise first and second diaphragms, and wherein said first and second diaphragms are canted with respect to each other.
21 . The add-on card of claim 20 , wherein said first and second actuators are wired in series.
22 . The add-on card of claim 20 , wherein said first and second actuators are wired in parallel.
23 . The add-on card of claim 18 , wherein said actuator comprises a housing having a cylindrical portion which houses said first and second actuators.
24 . The add-on card of claim 23 , wherein said housing is equipped with a vent that is in open communication with said cylindrical portion, and wherein said vent is equipped with a plurality of apertures.
25 . The add-on card of claim 24 , wherein said vent is partitioned into first, second and third channels that are in open communication, respectively, with first, second and third sets of apertures.
26 . The add-on card of claim 25 , wherein the number of apertures in said vent is 4n, wherein n is an integer, and wherein n≧1.
27 - 47 . (canceled)