Photovoltaic device

Patent metadata

Field	Value
Publication number	US-9602046-B2
Application number	US-201113989172-A
Country	US
Kind code	B2
Filing date	Dec 12, 2011
Priority date	Dec 17, 2010
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

The present invention is premised upon an improved photovoltaic device (“PV device”), more particularly to an improved photovoltaic device with a multilayered photovoltaic cell assembly and a body portion joined at an interface region and including an intermediate layer, at least one interconnecting structural member, relieving feature, unique component geometry, or any combination thereof.

First claim

What is claimed is:

1. A photovoltaic device comprising:
a three-dimensional multi-layered photovoltaic cell assembly in the form of a panel including at least:
a top surface,
a bottom surface, and
a peripheral edge extending between and connecting the top surface to the bottom surface, the peripheral edge including a length and a width;
further including a barrier layer comprising a rigid material that is transparent or translucent;

a body portion comprising:
filled or unfilled moldable plastic material,
a main body portion,
a first frame portion, and
a second frame portion extending from an opposite side of the main body portion as the first frame portion and an empty region located between the first frame portion and the second from portion; and
wherein the body portion is at least partially surrounding a portion of the top surface and the peripheral edge of the three-dimensional multi-layered photovoltaic cell assembly, and the main body portion has a bottom peripheral edge extending between and connecting the first frame portion and the second frame portion;

a relieving feature disposed in the main body portion that is a localized thinning of the main body portion, the localized thinning of the main body portion extending along the bottom peripheral edge of the main body portion and being located outside of the peripheral edge of the three-dimensional multi-layered photovoltaic cell assembly so that the relieving feature allows elastic deformation of the photovoltaic device over a temperature range, wherein the localized thinning has a depth of at least 50 percent that of a depth of the three-dimensional multi-layered photovoltaic cell assembly, and wherein the localized thinning of the main body portion is a channel; and
at least one electrical connector assembly with a connector housing, the connector housing having an outer surface having a housing top surface, a housing bottom surface, and a housing peripheral edge connecting the housing top surface and the housing bottom surface, and the at least one connector housing is located between a portion of the relieving feature and the bottom peripheral edge of the main body portion.

2. The photovoltaic device according to claim 1 , wherein the at least one electrical connector assembly is two electrical connector assemblies disposed on opposite sides of the three dimensional multi-layered photovoltaic cell assembly.

3. The photovoltaic device according to claim 1 , wherein the relieving feature is disposed in the main body portion within 15.0 mm of the barrier layer of the three-dimensional multi-layered photovoltaic cell assembly along at least 50 percent of a top peripheral edge of the multi-layered photovoltaic cell assembly, and
wherein the top peripheral edge of the three-dimensional multi-layered photovoltaic cell assembly is located proximate to the bottom peripheral edge of the main body portion.

4. The photovoltaic device according to claim 1 , wherein the housing peripheral edge of the connector housing includes a top peripheral edge and a bottom peripheral edge and the bottom peripheral edge is located proximate to the three-dimensional multi-layered photovoltaic cell assembly and the top peripheral edge is located opposite the bottom peripheral edge, and the relieving feature is disposed in the main body portion within 5.0 mm of the top peripheral edge of the connector housing.

5. The photovoltaic device according to claim 1 , wherein the barrier layer is comprised of a glass with a thickness of 1.0 to 5.0 mm.

6. The photovoltaic device according to claim 1 , wherein at least the body portion is comprised of:
a body material with a body coefficient of linear thermal expansion, the body portion with a body lower surface portion, body upper surface portion and a body side surface portion spanning between the upper and lower surface portions and forming a body peripheral edge, wherein at least a portion of the body portion abuts to a segment of a barrier layer peripheral edge at an interface region;
wherein the at least one electrical connector assembly further includes at least one component at least partially embedded in the body side surface portion and the connector assembly component includes a connector assembly lower surface portion, a connector assembly upper surface portion and a connector assembly side surface portion spanning between the upper and lower surface portions which forms a connector assembly peripheral edge, wherein the connector assembly peripheral edge that is closest to the interface region has at least one rounded connector corner, and the connector assembly is in electrical communication with a photovoltaic cell layer of the photovoltaic cell assembly.

7. The photovoltaic device according to claim 1 , wherein:
the multilayered photovoltaic cell assembly is comprised of:
the barrier layer with a barrier layer material having a barrier coefficient of linear thermal expansion and a photovoltaic cell layer disposed inboard of a barrier layer peripheral edge, the barrier layer including a barrier lower surface portion, a barrier upper surface portion and a barrier side surface portion spanning between the upper and lower surface portions with a barrier profile between the upper and lower surface portions and a barrier perimeter spanning about the barrier layer which forms the barrier layer peripheral edge;

the body portion comprised of:
a body material with a body coefficient of linear thermal expansion, the body portion with a body lower surface portion, body upper surface portion and a body side surface portion spanning between the upper and lower surface portions and forming a body peripheral edge, wherein at least a portion of the body portion abuts to a segment of the barrier layer peripheral edge at an interface region.

8. The photovoltaic device according to claim 1 , comprising an intermediate layer comprised of a layer material and including a layer elastic modulus value, a layer ultimate elongation value, a layer coefficient of thermal expansion value and a layer strength value, wherein the intermediate layer is at least partially disposed between the three-dimensional multi-layered photovoltaic cell assembly and the body portion.

9. The photovoltaic device according to claim 1 , wherein the body portion is around at least a portion of the peripheral edge of the multi-layered photovoltaic cell assembly and a bottom of the three-dimensional multi-layered photovoltaic cell assembly is a bottom of the photovoltaic device at the three-dimensional multi-layered photovoltaic cell assembly.

10. The photovoltaic device according to claim 1 , wherein the localized thinning of the main body portion has a width that is about 2.5 mm to 12.5 mm.

11. The photovoltaic device according to claim 10 , wherein the barrier layer includes corners with a barrier layer peripheral edge extending therebetween and the relieving feature extends along at least about 50 percent of the barrier layer peripheral edge between the corners.

12. The photovoltaic device according to claim 11 , wherein the relieving feature is located along at least about 90 percent of the barrier layer peripheral edge between the corners.

13. The photovoltaic device according to claim 10 , wherein the relieving feature directly abuts the connector housing.

14. The photovoltaic device according to claim 10 , wherein the body portion is around at least a portion of the peripheral edge of the multi-layered photovoltaic cell assembly and a bottom of the three-dimensional multi-layered photovoltaic cell assembly is a bottom of the photovoltaic device at the three-dimensional multi-la

Assignees

• Reese Jason A
• Keenihan James R
• Gaston Ryan S
• Kauffmann Keith L
• Langmaid Joseph A
• Lopez Leonardo C
• Maak Kevin D
• Mills Michael E
• Ramesh Narayan
• Teli Samar R
• Dow Global Technologies Llc

Inventors

• Reese Jason A
• Keenihan James R
• Gaston Ryan S
• Kauffmann Keith L
• Langmaid Joseph A
• Lopez Leonardo C
• Maak Kevin D
• Mills Michael E
• Ramesh Narayan
• Teli Samar R

Classifications

• Y02E10/50

  Photovoltaic [PV] energy · CPC title

• H02S20/25 Primary

  Roof tile elements · CPC title

• H01L31/048

  Electricity · mapped topic

• Y02B10/12

  Cross-Sectional Technologies · mapped topic

• H02S40/34

  comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes · CPC title