Synthetic jet ejector and design thereof to facilitate mass production
View Patent ↗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.
1. A synthetic jet ejector, comprising:
first and second voice coil bodies;
first and second sets of electrically conductive terminals;
first and second coils of wire coiled 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; and
a flexible, electrically conductive connector having first and second ends attached 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.
2. The synthetic jet ejector of claim 1 , wherein the synthetic jet ejector comprises first and second voice coils, wherein said first coil forms a portion of said first voice coil, and wherein said second coil forms a portion of said second voice coil.
3. The synthetic jet ejector of claim 1 , wherein the first and second sets of terminals are releasably mated with the first and second sets of channels, respectively.
4. The synthetic jet ejector of claim 3 , 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.
5. The synthetic jet ejector of claim 4 , 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.
6. The synthetic jet ejector of claim 4 , 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.
7. The synthetic jet ejector of claim 3 , 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.
8. The synthetic jet ejector of claim 7 , 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.
9. The synthetic jet ejector of claim 1 , 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.
10. The synthetic jet ejector of claim 1 , wherein the connector has a chip disposed on a surface thereof which controls the operation of the first and second voice coils.
11. The synthetic jet ejector of claim 1 , wherein the connector has a terminal plate disposed thereon, and wherein an external power supply cable is connected to the terminal plate.
12. The synthetic jet ejector of claim 1 , wherein said connector comprises:
a central portion having a semiconductor device disposed thereon which is adapted to control the operation of the first and second electromagnetic coils; and
first and second flexible arms depending from said central portion, wherein said first arm terminates in a first tab which releasably attaches to said first coil, and wherein said second arm terminates in a second tab which releasably attaches to said second coil.
13. The synthetic jet ejector of claim 12 , further comprising a third tab connected to said central portion, said third tab being adapted to mate with an external power source.
14. The synthetic jet ejector of claim 13 , wherein said third tab is equipped with a plurality of apertures, and wherein each of said plurality of apertures is adapted to releasably engage a terminal portion of a wire.
15. The synthetic jet ejector of claim 12 , wherein said first and second arms are arcuate.
16. The synthetic jet ejector of claim 12 , wherein said central portion and said first and second arms comprise an electrically conductive material.
17. The synthetic jet ejector of claim 16 , wherein said semiconductor device is in electrical communication with said first and second tabs.
18. The synthetic jet ejector of claim 12 , wherein said electrical connector is cut from a planar sheet of material.
19. The synthetic jet ejector of claim 1 , wherein said first and second voice coil bodies have first and second sets of channels defined therein, respectively, and wherein said first and second sets of electrically conductive terminals disposed in the first and second sets of channels, respectively.
20. The synthetic jet ejector of claim 1 , wherein said connector comprises a central portion having a control device disposed on a surface thereof which controls the operation of the first and second voice coils, and first and second arms which extend from said central portion, wherein said control device is in electrical communication with said first voice coil by way of said first arm, and wherein said control device is in electrical communication with said second voice coil by way of said second arm.
21. The synthetic jet ejector of claim 20 , wherein said connector further comprises a third arm which is in electrical communication with said central portion and with an external power source.
22. The synthetic jet ejector of claim 1 , wherein said connector comprises a material selected from the group consisting of polyesters, polyimides and polyether ether ketones.
23. The synthetic jet ejector of claim 22 , wherein said connector has circuitry defined thereon.
24. The synthetic jet ejector of claim 22 , wherein said circuitry is formed through screen printing.