# US 2013/0155680 A1 · Low Form Factor Synthetic Jet 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 2013/0155680 A1
- Document ID: US20130155680A1
- Status: Published application
- Kind: A1
- Application number: 13/704,549
- Filed: 2011-06-17
- Published: 2013-06-20
- Earliest claimed: 2010-06-16
- Assignees: Nuventix, Inc.
- Inventors: Daniel N. Grimm; Stephen P. Darbin
- Web page: https://patentgrep.com/patent/US20130155680A1

## CPC

- F21V 29/74: with fins or blades
- F21V 29/63: using electrically-powered vibrating means; using ionic wind
- F21K 9/232: specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
- F21V 29/83: the elements having apertures, ducts or channels, e.g. heat radiation holes
- F21Y 2115/10: Light-emitting diodes [LED]
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED

## Abstract

A combination of a synthetic jet ejector with a host device is provided. The combination comprises (a) a chamber having an aperture disposed in a wall thereof; (b) a diaphragm disposed in said chamber; and (c) an actuator adapted to vibrate said diaphragm so as to create a synthetic jet in a flow of fluid exiting said chamber through said aperture; wherein said chamber has at least one interior surface which is formed by an element of the host device.

## Claims

### Claim at position 1

-22. (canceled)

### Claim 23

A light source, comprising:
a housing element;
a heat sink;
a first flow channel element which, alone or in combination with said housing element, creates (a) a first set of flow paths for the flow of fluid in a first direction through the light source, and (b) a second set of flow paths for the flow of fluid in a second direction through the light source;
an LED which is in thermal contact with said heat sink; and
a synthetic jet ejector which comprises a diaphragm disposed in a chamber; wherein said chamber is in fluidic communication with said first set of flow paths, and wherein said chamber has at least one surface formed by at least one of said housing element and said heat sink.

### Claim 24 (depends on 23)

The light source of claim 23, wherein said first set of flow paths is in fluidic communication with at least one surface of said heat sink.

### Claim 25 (depends on 23)

The light source of claim 23, wherein said first flow channel element is disposed on a major surface of said heat sink.

### Claim 26 (depends on 23)

The light source of claim 23, wherein said heat sink has a central portion with a plurality of fins extending radially therefrom, and wherein said set of LEDs is disposed on said central portion.

### Claim 27 (depends on 26)

The light source of claim 26, wherein said central portion has first and second opposing surfaces, wherein said set of LEDs is disposed on said first surface, and wherein said first flow channel element is disposed on said second surface.

### Claim 28 (depends on 26)

The light source of claim 26, wherein said central portion is essentially planar.

### Claim 29 (depends on 28)

The light source of claim 28, wherein each of said plurality of fins is essentially planar, and wherein said plurality of fins are essentially perpendicular to the plane of said central portion.

### Claim 30 (depends on 26)

The light source of claim 26, wherein said central portion is essentially circular.

### Claim 31 (depends on 30)

The light source of claim 30, wherein said central portion is separated from said plurality of fins by an annular ridge.

### Claim 32 (depends on 23)

The light source of claim 23, wherein said first flow channel element releasably engages said plurality of fins.

### Claim 33 (depends on 32)

The light source of claim 32, wherein said first flow channel element comprises a plurality of circumferential grooves and a plurality of arcuate sections, and wherein each of said plurality of fins extends into one of said plurality of circumferential grooves.

### Claim 34 (depends on 33)

The light source of claim 33, wherein any pair of adjacent circumferential grooves is separated by one of said arcuate sections.

### Claim 35 (depends on 23)

The light source of claim 23, wherein said first flow channel element is disposed within said housing element.

### Claim 36 (depends on 23)

The light source of claim 23, wherein said heat sink is disposed within said housing element.

### Claim 37 (depends on 23)

The light source of claim 23, wherein said set of synthetic jet actuators are disposed within a second flow channel element, and wherein said second flow channel element is in fluidic communication with said first flow channel element.

### Claim 38 (depends on 37)

The light source of claim 37, wherein said second flow channel element is essentially cylindrical in shape and is equipped with a plurality of spouts, and wherein said plurality of spouts are in fluidic communication with said first set of flow paths.

### Claim 39 (depends on 38)

The light source of claim 38, wherein said heat sink is equipped with a plurality of fins, and wherein each of said spouts is adapted to direct a synthetic jet between an adjacent pair of fins.

### Claim 40 (depends on 37)

The light source of claim 37, wherein said set of synthetic jet actuators includes first and second actuators, wherein each of said first and second actuators is equipped with an oscillating diaphragm, wherein said second flow channel element is equipped with a first set of flow channels which are in fluidic communication with the diaphragm of said first actuator, and wherein said second flow channel element is equipped with a second set of flow channels which are in fluidic communication with the diaphragm of said second actuator.

### Claim 41 (depends on 40)

The light source of claim 40, wherein said first set of flow channels are disposed in a first arcuate extension which protrudes circumferentially from said second flow channel element, and wherein said second set of flow channels are disposed in a second arcuate extension which protrudes circumferentially from said second flow channel element.

### Claim 42 (depends on 23)

The light source of claim 23, wherein said set of LEDs contains a plurality of LEDs arranged in an interlocking pattern.

### Claim 43 (depends on 23)

The light source of claim 23, wherein said set of synthetic jet actuators is adapted to draw fluid in through said second set of flow paths, and to expel fluid through said first set of flow paths.

### Claim 44 (depends on 43)

The light source of claim 43, wherein said housing element terminates in an annular lip, and wherein said second set of flow paths terminate at the periphery of said lip.

### Claim 45 (depends on 23)

The light source of claim 23, wherein said set of synthetic jet actuators comprises first and second actuators disposed in opposing relationship to each other.

### Claim 46 (depends on 23)

The light source of claim 23, wherein said set of actuators is disposed within said housing element and behind said heat sink.

### Claim 47 (depends on 23)

The light source of claim 23, wherein said housing element has first and second ends, and further comprising an electrical contact module which is attached to said second end of said housing element by way of an adapter.

### Claim 48 (depends on 47)

The light source of claim 47, wherein said adapted contains first and second annular portions, wherein said first annular portion has a smaller diameter than said second annular portion, and wherein said first and second annular portions are connected to each other by a conical portion.

### Claim 49 (depends on 48)

The light source of claim 48, wherein said electrical contact module comprises a threaded metal portion which is attached to the exterior of said first annular portion.

### Claim 50 (depends on 23)

The light source of claim 23, wherein said chamber has at least one surface formed by said housing element.

### Claim 51 (depends on 23)

The light source of claim 23, wherein said chamber has at least one surface formed by said heat sink.

### Claim 52 (depends on 23)

The light source of claim 23, wherein said chamber has at least one wall formed by said housing element.

### Claim 53 (depends on 23)

The light source of claim 23, wherein said chamber has at least one wall formed by said heat sink.