Reinforcement PV laminate

Patent metadata

Field	Value
Publication number	US-9729103-B2
Application number	US-201314440428-A
Country	US
Kind code	B2
Filing date	Nov 25, 2013
Priority date	Dec 18, 2012
Publication date	Aug 8, 2017
Grant date	Aug 8, 2017

Abstract

A solar module ( 2 ) comprising: (a) a plurality of interconnected photovoltaic cells ( 4 ); (b) a forward protective layer ( 22 ); (c) a rearward protective layer ( 24 ); and (d) an reinforcement ( 10 ); wherein the reinforcement is integrally located within the solar module and extends from a location substantially proximate to the forward protective layer to a location substantially proximate to the rearward protective layer.

First claim

We claim:

1. A solar module comprising:
a. a plurality of interconnected photovoltaic cells;
b. a forward protective layer;
c. a rearward protective layer; and
d. an encapsulating layer disposed below the forward protective layer and above the plurality of interconnected photovoltaic cells, above the rearward protective layer and below the plurality of interconnected photovoltaic cells, or both;
wherein the solar module includes a reinforcement including:
i. an outer frame that extends partially and/or entirely around an outer edge of the solar module, and

ii. an inner frame that is surrounded by and directly connected to the outer frame;
wherein the inner frame includes a top surface and a bottom surface and one or more channels extend through a central portion of the inner frame between the top surface and the bottom surface;
wherein the plurality of interconnected photovoltaic cells are electrically connected together and one or more interconnect elements extend through the one or more channels to connect two or more of the plurality of interconnected photovoltaic cells electrically together;
wherein the plurality of interconnected photovoltaic cells are incorporated within the reinforcement, the reinforcement is integrally located within the solar module, the outer frame and the inner frame are sandwiched between the forward protective layer and the rearward protective layer, and the inner frame of the reinforcement is incorporated between each of the plurality of interconnected photovoltaic cells so that any load applied to the solar module is distributed throughout the reinforcement;
wherein the reinforcement is made of a material that has an elastic modulus of about 10 GPa or more so that the cells are substantially free of deflection when a load is applied; and
wherein the solar module has a thickness of about 50 mm or less.

2. The solar module of claim 1 , wherein the reinforcement has sufficient strength so that each of the plurality of interconnected photovoltaic cells are protected during a static load, a dynamic load, or both.

3. The solar module of claim 1 , wherein each individual cell of the plurality of cells are substantially surrounded by the reinforcement so that the reinforcement limits deflection of each of the plurality of cells when a load is applied.

4. The solar module of claim 1 , wherein the solar module is directly connected to a roof by a fastener extending through the solar module and into the roof.

5. The solar module of claim 1 , wherein the plurality of interconnected photovoltaic cells comprise crystalline silicon.

6. The solar module of claim 1 , wherein the solar module has a thickness of about 20 mm or less, and a thickness of the reinforcement is less than the thickness of the solar module.

7. The solar module of claim 1 , wherein the reinforcement is configured to prevent a load applied to the forward protective layer, the rearward protective layer, or both from deflecting the forward protective layer, the rearward protective layer, or both into contact with the plurality of interconnected photovoltaic cells.

8. The solar module of claim 1 , wherein the reinforcement has a sufficient strength so that the reinforcement can withstand a static load of 50 Kg -125 Kg or a dynamic load having a kinetic energy of about 5 J -20 J.

9. The solar module of claim 1 , wherein the reinforcement has a corrugated structure, a honeycomb structure, or both.

10. A solar array comprising:
a plurality of solar modules of claim 1 ;
wherein the plurality of solar modules are directly attached to a connection surface.

11. The solar array of claim 10 , wherein at least a portion of two or more adjacent solar modules of the plurality of solar modules overlap each other when installed, and each of the solar modules are free of a separate structure for connecting the solar modules to the connection surface.

12. The solar module of claim 2 , wherein each of the plurality of cells are entirely surrounded by the inner frame or the inner frame and the outer frame of the reinforcement so that the reinforcement limits deflection of each of the plurality of cells when a load is applied.

13. The solar module of claim 4 , wherein the forward protective layer and the rearward protective layer are connected to the reinforcement.

14. The solar module of claim 13 , wherein the encapsulating layer is located over the reinforcement and adheres the reinforcement to the forward protective layer and the rearward protective layer.

15. The solar module of claim 14 , wherein the reinforcement is made of a material with an elastic modulus of about 30 GPa or more, and the reinforcement and the forward protective layer have sufficient strength to withstand a static load of about 75 Kg and a dynamic load having a kinetic energy of about 10 J -20 J.

Assignees

• Dow Global Technologies Llc
• Dow Global Technologies Llc

Inventors

• Kauffman Keith L
• Yang Kwanho
• Feng Jie
• Liu Hua
• Burr Scott T
• Feist Rebekah K
• Sharma Rahul
• Lopez Leonardo

Classifications

• Y02E10/50

  Photovoltaic [PV] energy · CPC title

• H02S20/25

  Roof tile elements · CPC title

• H01L31/048

  Electricity · mapped topic

• H01L31/0488

  Electricity · mapped topic

• H01L31/049

  Electricity · mapped topic