Compactable power generation arrays

Patent metadata

Field	Value
Publication number	US-10992253-B2
Application number	US-201615233739-A
Country	US
Kind code	B2
Filing date	Aug 10, 2016
Priority date	Aug 10, 2015
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

Compactable power generation arrays are provided. The compactable power generation arrays may include a structural substrate body having an array of solar concentrators configured to receive and re-direct solar radiation onto a plurality of photovoltaic (PV) cells. In many other embodiments the PV cells may be disposed upon a back surface of each of the solar concentrators such that an adjacent solar concentrator is configured to re-direct solar radiation onto the PV cell disposed on the back surface of the adjacent solar concentrator.

First claim

What is claimed is:

1. A compactable power generation array comprising:
at least one structural substrate body;
an array of at least two solar concentrators resiliently connected to the at least one structural substrate body, each of the at least two solar concentrators having a plurality of structural support layers, wherein the plurality of structural support layers are layered such that they form a curved body having a front reflector surface and a back surface, and a first edge resiliently connected to the resilient connector and a second edge disposed opposite said first edge;
at least one photovoltaic cell disposed on at least a portion of the back surface of each of the solar concentrators;
at least one power transmitter electromechanically connected to the at least one photovoltaic cell and wherein the at least one power transmitter converts an electrical current generated by the at least one photovoltaic cell into a wireless signal and transmits said wireless signal;
wherein the compactable power generation array is deployable between a deployed position and a compacted positon wherein the at least one power transmitter is separated from the array of at least two solar concentrators by a gap in the deployed position and rests in a separate and parallel plane from that of the array of at least two solar concentrators;
wherein the at least two solar concentrators are deployable between a compacted configuration and a deployed configuration,
wherein in the compacted configuration the first and second edges and the curved body of each of the at least two solar concentrators are positioned parallel to the plane of the at least one structural substrate body,
and wherein in the deployed configuration the second edge and curved body of each of the at least two solar concentrators are positioned out of plane from the plane of the at least one structural substrate body;

wherein the at least two solar concentrators are placed under stress through the application of a holding force when the solar concentrator is disposed in the compacted configuration such that the at least two solar concentrators self-articulate to the deployed configuration upon removal of the holding force; and
wherein when disposed in the deployed configuration, each of the solar concentrators is configured to receive and re-direct solar radiation onto the at least one photovoltaic cell disposed on an adjacent solar concentrator.

2. The power generation array of claim 1 wherein the solar concentrators are configured to maintain a parabolic shape upon self-deployment.

3. The power generation array of claim 1 where the at least one photovoltaic cell is disposed near the second edge of each of the at least two solar concentrators.

4. The power generation array of claim 1 where the at least one photovoltaic cell is disposed upon a middle portion of the back surface of the at least two solar concentrators.

5. The power generation array of claim 1 wherein the at least one photovoltaic cell further comprises at least one cover glass layer.

6. The power generation array of claim 1 wherein the at least one photovoltaic cell further comprises double sided cover glass layers.

7. The power generation array of claim 1 where the at least two solar concentrators further comprise a carbon fiber matrix.

8. The power generation array of claim 7 wherein the carbon fiber matrix comprises at least three carbon fiber layers.

9. The power generation array of claim 1 further comprising a reflective material disposed on the front solar concentrator surface, wherein the reflective material is selected from a group consisting of gold, silver, aluminum, Kapton, and carbon fiber.

10. The power generation array of claim 1 further comprising at least one layer of dielectric material disposed upon each of the at least two solar concentrators.

11. The power generation array of claim 1 wherein the at least two solar concentrators further comprise a plurality of layers comprising:
at least a radiative layer;
a structural film layer disposed upon the radiative layer;
a heat dissipation layer disposed upon the structural film layer; and
a reflective layer disposed upon the heat dissipation layer.

12. The power generation array of claim 11 wherein each of the solar concentrators further comprises a flexible structural support layer that facilitates self-deployment of the solar concentrators when in the deployed configuration.

13. The power generation array of claim 12 wherein the structural support layer comprises a carbon fiber matrix support system.

14. The power generation array of claim 13 wherein the carbon fiber matrix further comprises at least three carbon fiber layers.

15. The power generation array of claim 1 wherein the at least one structural substrate body comprises a carbon fiber matrix.

16. A compactable power generation array comprising:
a first structural substrate body;
a second structural substrate body;
at least one flexible connection member compactably connected to the first and second substrate bodies wherein the first and second structural substrate bodies are deployable between a compacted position and a deployed position,
wherein in the compacted position the first structural substrate body is disposed parallel to the plane of and directly atop the second structural substrate body,
and wherein in the deployed position the first structural substrate body is configured to overlay the second structural substrate body and is separated from the second structural substrate body by a space determined by the configuration of the connection member;

wherein the flexible connection member is placed under stress through a holding force when the first and second structural substrate bodies are disposed in the compacted position such that the first structural substrate body self-articulates to the deployed position upon the removal of the holding force;
an array of at least two solar concentrators resiliently connected to the first structural substrate body, each of the at least two solar concentrators comprising a curved body having a front reflector surface and a back surface, and a first edge resiliently connected to the first structural substrate body and a second edge disposed opposite said first edge;
at least one photovoltaic cell disposed on at least a portion of the back surface of each of the at least two solar concentrators;
wherein the at least two solar concentrators are deployable between a compacted configuration and a deployed configuration,
wherein in the compacted configuration the first and second edges and the curved body of each of the at least two solar concentrators are positioned parallel to the plane of the first and second structural substrate bodies, and
wherein in the deployed configuration the second edge and curved body of each of the at least two solar concentrators are positioned out of plane from the plane of the first structural substrate body;

wherein the at least two concentrators are placed under stress through the application of a holding force when the at least two solar concentrators are disposed in the compacted configuration such that each of the solar concentrators self-articulate to the deployed configuration upon removal of the holding force; and
wherein when disposed in the deployed configuration, each of the solar concentrators is configured to receive and re-direct solar radiation onto the at least one photovoltaic cell disposed on an adjacent solar concentrator.

17. The power generation array of claim 16 wherein the first and the second struc

Assignees

• California Inst Of Techn

Inventors

• Atwater Harry A
• Pellegrino Sergio
• Hajimiri Seyed Ali
• Warmann Emily C
• Callahan Dennis
• Bosco Jeffrey P

Classifications

• H02S40/22 Primary

  Light-reflecting or light-concentrating means (directly associated with the PV cell or integrated with the PV cell H10F77/42) · CPC title

• H02S30/20

  Collapsible or foldable PV modules · CPC title

• Y02E10/52

  PV systems with concentrators · CPC title