IP Library Granted Patent US 11,867,431
Granted Patent B2
US 11,867,431 · App. 17/074,480 · Granted Jan 9, 2024

Solar photovoltaic blinds and curtains for residential and commercial buildings

Inventors: Mehrdad M. Moslehi (Los Altos, CA); Pawan Kapur (Burlingame, CA)
Assignee: Sigmagen, Inc.
F24S20/60E06B9/386F24S23/82H01L31/042H01L31/048H02S30/20E06B2009/2476Y02B10/10Y02E10/50
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Quick Facts
Patent No.
US 11,867,431
App. No.
17/074,480
Granted
Jan 9, 2024
Kind
B2
Abstract

Solar photovoltaic window blind slats for power generation from internal and external light sources are provided are provided. A plurality of solar cells are attached to at least two sides of a slat core. Distributed maximum power point tracking optimizer components are associated with each solar cell. The solar cells and corresponding distributed maximum power point tracking optimizer components on each slat side are connected in electrical series.

Claims (28)

1. A solar photovoltaic blind slat, comprising:

a plurality of backplane supported solar cells having a light receiving frontside and a backside, each of said solar cell backsides attached to a slat core made of an electrically insulating prepreg material, said slat core forming an electrically insulating backplane for said backside of each of said plurality of solar cells, said light receiving frontside facing externally and said backside facing said slat core;

each of said solar cells partitioned into a plurality of sub-cells, said plurality of sub-cells scaling up the voltage and scaling down the current of each of said solar cells;

said slat core having at least a first side and a second side;

said solar cells attached on said first side and said second side;

each of said first side and said second side supporting a string of solar cells connected in series and a string of said sub-cells of each of said solar cells connected in series; and

a maximum-power-point tracking power optimizer component formed as a CMOS integrated circuit, embedded within said slat core, and corresponding to each of said plurality of solar cells.

2. The solar photovoltaic blind slat of claim 1 , wherein said slat core is planar.

3. The solar photovoltaic blind slat of claim 1 , wherein said slat core is curved.

4. The solar photovoltaic blind slat of claim 1 , wherein said slat core is elliptical.

5. The solar photovoltaic blind slat of claim 1 , wherein said slat core is convex.

6. The solar photovoltaic solar blind slat of claim 1 , wherein said slat core is cylindrical.

7. The solar photovoltaic solar blind slat of claim 1 , wherein said slat core is concave.

8. The solar photovoltaic solar blind slat of claim 1 , wherein said plurality of solar cells are back contact solar cells.

9. The solar photovoltaic solar blind slat of claim 1 , further comprising a plurality of blind slats electrically connected in electrical series.

10. The solar photovoltaic solar blind slat of claim 1 , further comprising a plurality of blind slats electrically connected in electrical parallel.

11. A photovoltaic solar blind system, comprising:

a plurality of slats, each of said slats comprising:

a plurality of backplane supported solar cells having a light receiving frontside and a backside, each of said solar cell backsides attached to a slat core made of an electrically insulating prepreg material, said slat core forming an electrically insulating backplane for said backside of each of said plurality of solar cells, said light receiving frontside facing externally and said backside facing said slat core;

each of said solar cells partitioned into a plurality of sub-cells, said plurality of sub-cells scaling up the voltage and scaling down the current of each of said solar cells;

said slat core having at least a first side and a second side; said solar cells attached on said first side and said second side;

each of said first side and said second side supporting a string of solar cells connected in series and a string of said sub-cells of each of said solar cells connected in series;

and

a maximum-power-point tracking power optimizer component formed as a CMOS integrated circuit, embedded within said slat core, and corresponding to each of said plurality of solar cells.

12. The photovoltaic solar blind system of claim 11 wherein said plurality of slats are vertical.

13. The photovoltaic solar blind system of claim 11 wherein said plurality of slats are horizontal.

14. The photovoltaic solar blind system of claim 11 wherein said plurality of slats are connected in electrical series.

15. The photovoltaic solar blind system of claim 11 wherein said plurality of slats are connected in electrical parallel.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 4, 2026
From: SIGMAGEN, INC.
To: OPTERRO, INC.
Reel/Frame 075522/0464 →
Continuity (3)
Continuation 14275869 · May 12, 2014
Provisional Application 61822426 · May 12, 2013
Related Publication 20210215396A1 · Jul 15, 2021
Cited By (1)
US 12,352,469