Synthetic jet ejector and design thereof to facilitate mass production

• US 9,452,463 B2
• Filed: 05/30/2014
• Issued: 09/27/2016
• Est. Priority Date: 02/13/2010
• Status: Active Grant

• Current Assignee: Nuventix, Inc. (LTI Flexible Products Inc.)
• Original Assignee: Nuventix, Inc. (LTI Flexible Products Inc.)
• Inventors: Grimm, Daniel N., Darbin, Stephen P., Poynot, Andrew
• Primary Examiner(s): MULLINS, BURTON S
• Application Number:
  US14/291,729
• Publication Number:
  US 20150224560A1
• Time in Patent Office: 851 Days
• Field of Search: 295/94, 295/96, 296/05, 310/12.16, 381/397, 381400-401, 381/403, 381/407, 417/75, 417/151, 417/413.1
• US Class Current: 1/1
• CPC Class Codes: B21D 53/02 heat exchangers or parts thereof, e.g. radiators, condensers fins, headersmaking finned or ribbed tubes by fixing strip material or the like to tubes B21C37/22
• CPC Class Codes: F04F 5/00 Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow diffusion pumps F04F9/00; combination of jet pumps with pumps of other than jet type F04B; use of jet pumps for priming or boosting non-positive-displacement pumps F04D
• CPC Class Codes: F25D 15/00 Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices
• CPC Class Codes: H01F 41/02 for manufacturing cores, coils, or magnets H01F41/14 takes precedence; for dynamo-electric machines H02K15/00
• CPC Class Codes: H01F 41/04 for manufacturing coils coils for transformer or inductances H01F27/28
• CPC Class Codes: H01F 41/10 Connecting leads to windings making electric connections in general H01R43/00
• CPC Class Codes: H02K 15/00 Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
• CPC Class Codes: H02K 15/0056 Manufacturing winding connections
• CPC Class Codes: H02K 15/0068 Connecting winding sections; Forming leads; Connecting leads to terminals
• CPC Class Codes: H02K 15/08 Forming windings by laying conductors into or around core parts
• CPC Class Codes: H02K 33/12 with armatures moving in alternate directions by alternate energisation of two coil systems
• CPC Class Codes: H04R 9/04 Construction, mounting, or centering of coil
• CPC Class Codes: Y10T 29/4902 Electromagnet, transformer or inductor
• CPC Class Codes: Y10T 29/4935 Heat exchanger or boiler making

Abstract

A method is provided for making a synthetic jet ejector. The method comprises (a) providing first and second voice coil bodies (131) having first and second sets of channels defined therein, respectively; (b) inserting first and second sets of electrically conductive terminals (139) into the first and second sets of channels, respectively; (c) wrapping first and second coils of wire (151) around said first and second voice coil bodies, respectively, such that the first coil is in electrical contact with the first set of terminals and such that the second coil is in electrical contact with the second set of terminals; (d) forming a voice coil subassembly by attaching first and second ends of a flexible, electrically conductive connector (161) to said first and second voice coil bodies, respectively, wherein the first end of the connector is attached such that it is in electrical contact with the first set of terminals, and wherein the second end of the connector is attached such that it is in electrical contact with the second set of terminals; and (e) incorporating the voice coil subassembly into a synthetic jet ejector (103) having first and second voice coils such that said first coil forms a portion of said first voice coil, and such that said second coil forms a portion of said second voice coil.

Claims

1. A method for making a synthetic jet ejector, comprising:

providing a first voice coil body having first and second channels defined therein;

inserting first and second electrically conductive terminals into the first and second channels, respectively, of the first voice coil body;

wrapping a first coil of wire around said first voice coil body such that a first end of the first coil is in electrical contact with the first terminal, and such that a second end of the first coil is in electrical contact with the second terminal; and

attaching a first end of a flexible, electrically conductive connector to said first voice coil body such that the first end of the connector is in electrical contact with the first and second terminals.

2. The method of claim 1, further comprising:

incorporating the first voice coil body into a synthetic jet ejector.

3. The method of claim 2, wherein the first voice coil body is incorporated into a voice coil of a synthetic jet ejector.

4. The method of claim 1, further comprising:

providing a second voice coil body having first and second channels defined therein;

inserting third and fourth electrically conductive terminals into the first and second channels, respectively, of the second voice coil body;

wrapping a second coil of wire around said second voice coil body such that a first end of the second coil is in electrical contact with the third terminal, and such that a second end of the first coil is in electrical contact with the fourth terminal; and

attaching a second end of said flexible, electrically conductive connector to said second voice coil body such that the second end of the connector is in electrical contact with the third and fourth terminals.

5. The method of claim 4, wherein said connector is formed by cutting said connector from a sheet of material.

6. The method of claim 1, wherein said connector is formed by cutting said connector from a planar sheet of a flexible, electrically conductive material.

7. The method of claim 1, wherein said connector is formed by cut as a single, continuous shape from a planar sheet of electrically conductive material.

8. A method for making a synthetic jet ejector, comprising:

providing first and second voice coil bodies having first and second sets of channels defined therein, respectively;

inserting first and second sets of electrically conductive terminals into the first and second sets of channels, respectively;

wrapping first and second coils of wire around said first and second voice coil bodies, respectively, such that the first coil is in electrical contact with the first set of terminals and such that the second coil is in electrical contact with the second set of terminals;

forming a voice coil subassembly by attaching first and second ends of a flexible, electrically conductive connector to said first and second voice coil bodies, respectively, wherein the first end of the connector is attached such that it is in electrical contact with the first set of terminals, and wherein the second end of the connector is attached such that it is in electrical contact with the second set of terminals; and

incorporating the voice coil subassembly into a synthetic jet ejector having first and second voice coils such that said first coil forms a portion of said first voice coil, and such that said second coil forms a portion of said second voice coil.

9. The method of claim 8, wherein the first and second sets of terminals releasably mate with the first and second sets of channels, respectively.

10. The method of claim 8, wherein each member of the first and second sets of terminals has a longitudinal body which terminates on a first end in a bulbous protrusion.

11. The method of claim 10, wherein the first set of terminals has first and second members, wherein a first end of the first coil is wrapped around the first member adjacent to the bulbous protrusion thereon, and wherein a second end of the first coil is wrapped around the second member adjacent to the bulbous protrusion thereon.

12. The method of claim 11, wherein the first and second voice coil bodies are generally cylindrical in shape, and wherein the first and second terminals are arranged in parallel and extend across the diameter of the cylinder.

13. The method of claim 11, wherein the second end of the longitudinal body of each of the first and second members is in electrical contact with a first end of the connector.

14. The method of claim 11, further comprising:

incorporating the first and second voice coil body into first and second voice coils, respectfully, of a synthetic jet ejector.

15. The method of claim 10, wherein the second set of terminals has first and second members, wherein a first end of the second coil is wrapped around the first member of the second set adjacent to the bulbous protrusion thereon, and wherein a second end of the second coil is wrapped around the second member of the second set adjacent to the bulbous protrusion thereon.

16. The method of claim 15, wherein the second end of the longitudinal body of each of the first and second members of the second set is in electrical contact with a second end of the connector.

17. The method of claim 16, wherein the connector has a semiconductor chip disposed on a surface thereof which controls the operation of the first and second voice coils.

18. The method of claim 16, wherein the connector has a terminal plate disposed thereon, and further comprising:

connecting an external power supply cable to the terminal plate.

19. The method of claim 8, wherein said connector is formed by cutting said connector from a sheet of material.

20. The method of claim 8, wherein said connector is formed by cutting said connector from a planar sheet of a flexible, electrically conductive material.

21. The method of claim 8, wherein said connector is formed by cut as a single, continuous shape from a planar sheet of electrically conductive material.

22. The method of claim 8, wherein the first and second sets of electrically conductive terminals are pins.