The present invention is directed to a roofing system, and, more specifically, to a roofing system that includes a plurality of photovoltaic modules installed on a roof deck.
In a known roofing system, a plurality of photovoltaic modules and a plurality of non-photovoltaic modules (e.g., roofing shingles) are installed on a sloped roof deck.
The Claims, rather than the Summary, define covered embodiments of the present invention. The Summary is a high-level overview of various aspects of the invention, and introduces concepts that are further described in the Detailed Description below. The Summary is not intended to identify key or essential features of the claimed subject matter, and also is not intended to be used in isolation to determine the scope of the claimed subject matter. Instead, the claimed subject matter should be understood by reference to appropriate portions of the Specification and drawings, as well as to each claim.
In some embodiments, the present invention provides a system, comprising: a plurality of photovoltaic modules installed on a roof deck, wherein the plurality of photovoltaic modules includes at least a first photovoltaic module and a second photovoltaic module, wherein the first photovoltaic module and the second photovoltaic module are arranged in an array on the roof deck, wherein each of the plurality of photovoltaic modules comprises: a first end, a second end opposite the first end, and a first location between the first end and the second end; a first plurality of solar cells; a second plurality of solar cells, wherein the first plurality of solar cells in in electrical connection with the second plurality of solar cells; an encapsulant layer, wherein the encapsulant layer encapsulates the first plurality of solar cells and the second plurality of solar cells; a frontsheet, wherein the frontsheet is above an upper surface of the encapsulant layer; a backsheet, wherein the backsheet is below a lower surface of the encapsulant layer; and a first portion and a second portion, wherein the first portion extends between the first end and the first location, wherein the second portion extends between the first location and the second end, wherein the second portion includes a wireway, wherein the first plurality of solar cells is positioned within the first portion, wherein the second plurality of solar cells is positioned within the second portion.
In some embodiments, the second photovoltaic module at least partially overlaps the first photovoltaic module.
In some embodiments, the backsheet comprises a polymer material.
In some embodiments, the backsheet comprises at least one of a polyolefin elastomer (POE), a dielectric material, a thermoplastic polyolefin (TPO), or a continuous fiber tape (CFT).
In some embodiments, the frontsheet comprises: a polymer layer, and a glass layer, wherein the glass layer is juxtaposed with the encapsulant layer.
In some embodiments, the polymer layer comprises at least one of an ethylene tetrafluoroethylene (ETFE) or a polyolefin elastomer (POE).
In some embodiments, the first portion extends along a first plane, the second portion extends along a second plane, wherein the first plane is offset from the second plane.
In some embodiments, the first plurality of solar cells includes at least a first string, the second plurality of solar cells includes at least a second string, wherein the first string extends in a first direction, wherein the second string extends in a second direction, wherein the first direction is different than the second direction.
In some embodiments, the first direction is perpendicular to the second direction.
In some embodiments, the system further comprises a junction box, wherein the junction box is in electrical connection with the first photovoltaic module and the second photovoltaic module.
In some embodiments, the present invention provides a system, comprising: a plurality of photovoltaic modules installed on a roof deck, wherein the plurality of photovoltaic modules includes at least a first photovoltaic module and a second photovoltaic module, wherein the first photovoltaic module and the second photovoltaic module are arranged in an array on the roof deck, wherein each of the plurality of photovoltaic modules comprises: a first end, a second end opposite the first end, and a first location between the first end and the second end; a first plurality of solar cells; a second plurality of solar cells, wherein the first plurality of solar cells in in electrical connection with the second plurality of solar cells; an encapsulant layer, wherein the encapsulant layer encapsulates the first plurality of solar cells and the second plurality of solar cells; a first frontsheet, wherein the first frontsheet is above an upper surface of the encapsulant layer and an upper surface of the first plurality of solar cells; a second frontsheet, wherein the second frontsheet is above the upper surface of the encapsulant layer and an upper surface of the second plurality of solar cells; a backsheet, wherein the backsheet is below a lower surface of the encapsulant layer; and a first portion and a second portion, wherein the first portion extends between the first end and the first location, wherein the second portion extends between the first location and the second end, wherein the second portion includes a wireway, wherein the first plurality of solar cells is positioned within the first portion, wherein the second plurality of solar cells is positioned within the second portion.
In some embodiments, the first frontsheet layer comprises a first glass layer, and the second frontsheet layer comprises a second glass layer.
This section refers to the drawings that form a part of this disclosure, and which illustrate some of the embodiments of structure, materials, and/or methods of the present invention described herein.
In addition to the benefits and improvements that the Specification discloses, other objects and advantages that the Specification provides will become apparent from the following description taken in conjunction with the accompanying figures. Although the description discloses and describes detailed embodiments of the present disclosure, the disclosed embodiments are merely illustrative of the disclosure that may be embodied in various forms. In addition, each of the examples given regarding the various embodiments of the disclosure are intended to be illustrative, and not restrictive.
As used herein, a “steep slope” roof or roof deck is a roof or roof deck having a pitch of Y/X, where Y and X are in a ratio of 4:12 to 20:12, where Y corresponds to the “rise” of the roof or roof deck, and where X corresponds to the “run” of the roof or roof deck.
As used herein, a “sloped” roof or roof deck includes a roof or roof deck with a pitch that is less than that of a steep slope roof or roof deck, but which is not a flat roof or roof deck.
In some embodiments, the present invention provides a roofing system including a least one photovoltaic module installed on a roof deck. In some embodiments, the roof deck is a sloped roof deck. In some embodiments, the roof deck is a steep slope roof deck.
In some embodiments, the least one photovoltaic module includes one photovoltaic module. In some embodiments, the least one photovoltaic module includes a plurality of photovoltaic modules. In some embodiments, the plurality of photovoltaic modules includes at least two photovoltaic modules—e.g., a first photovoltaic module, and a second photovoltaic module. In some embodiments, the plurality of photovoltaic modules includes more than two photovoltaic modules. In some embodiments, the photovoltaic modules are arranged in an array on the roof deck. In some embodiments, the second photovoltaic module at least partially overlaps the first photovoltaic module on the roof deck.
In some embodiments, one or more of the photovoltaic modules includes a structure, composition, component, and/or function similar to those of one or more embodiments of the photovoltaic modules and shingles disclosed, shown, and/or described in any or all of: U.S. application Ser. No. 17/831,307, filed Jun. 2, 2022, titled “Roofing Module System,” and published under U.S. Patent Application Publication No. 2022-0393637 on Dec. 8, 2022; U.S. application Ser. No. 18/169,718, filed Feb. 15, 2023, titled “Roofing Module System,” and published under U.S. Patent Application Publication No. 2023-0203815 on Jun. 29, 2023; PCT International Patent Publication No. WO 2022/051593, Application No. PCT/US2021/049017, published Mar. 10, 2022, titled “Building Integrated Photovoltaic System,” owned by GAF Energy LLC; and/or U.S. Pat. No. 11,251,744 to Bunea et al., issued Feb. 15, 2022, titled “Photovoltaic Shingles and Methods of Installing Same”; U.S. Pat. No. 11,404,997 to Bunea et al., issued Aug. 2, 2022, entitled “Photovoltaic Shingles and Methods of Installing Same,” owned by GAF Energy LLC; and/or U.S. Pat. No. 12,013,153 to Clemente et al., issued Jun. 18, 2024, entitled “Building Integrated Photovoltaic System,” owned by GAF Energy LLC; and U.S. Pat. No. 12,009,782 to West et al., issued Jun. 11, 2024, entitled “Photovoltaic Systems with Wireways,” and owned by GAF Energy, LLC, the contents of each of which are incorporated by reference herein in their entirety.
In some embodiments, the roofing system includes at least one non-photovoltaic module installed on the roof deck. In some embodiments, the least one non-photovoltaic module includes one non-photovoltaic module. In some embodiments, the at least one non-photovoltaic module includes a plurality of non-photovoltaic modules. In some embodiments, the one or more non-photovoltaic modules are installed proximate the one or more photovoltaic modules on the roof deck.
In some embodiments, the non-photovoltaic module is a roofing shingle. In some embodiments, the non-photovoltaic module is a cuttable roofing module. In some embodiments, the non-photovoltaic module is a nailable roofing module. In some embodiments, the non-photovoltaic module includes a structure, composition, component, and/or function similar to those of one or more embodiments of a non-photovoltaic module and/or another roofing material disclosed, shown, and/or described in either or both of U.S. application Ser. No. 17/831,307, filed Jun. 2, 2022, titled “Roofing Module System,” and published under U.S. Patent Application Publication No. 2022-0393637 on Dec. 8, 2022; and/or U.S. application Ser. No. 18/169,718, filed Feb. 15, 2023, titled “Roofing Module System,” and published under U.S. Patent Application Publication No. 2023-0203815 on Jun. 29, 2023; and/or U.S. application Ser. No. 18/352,894, filed Jul. 14, 2023, titled “Solar Roofing System with Fiber Composite Roofing Shingles,” and the disclosures of each of which are incorporated by reference herein in their entireties, with certain different and/or additional features as described herein.
In some embodiments, the roofing system includes an underlayment between the roof deck and the one or more non-photovoltaic modules and/or one or more photovoltaic modules. In some embodiments, the roofing system omits an underlayment. In some embodiments, the roofing system includes one or more other components other than one or more non-photovoltaic modules, one or more photovoltaic modules, and/or an underlayment.
In some embodiments, one or more of the photovoltaic modules includes a first end, a second end opposite the first end, and a first location between the first end and the second end. In some embodiments, one or more of the photovoltaic modules includes a first plurality of solar cells. In some embodiments, one or more of the photovoltaic modules includes a second plurality of solar cells. In some embodiments, the first plurality of solar cells in in electrical connection with the second plurality of solar cells. In some embodiments, the first plurality of solar cells includes one solar cell. In some embodiments, the first plurality of solar cells includes two solar cells. In some embodiments, the first plurality of solar cells includes three solar cells. In some embodiments, the first plurality of solar cells includes four solar cells. In some embodiments, the first plurality of solar cells includes five solar cells. In some embodiments, the first plurality of solar cells includes six solar cells. In some embodiments, the first plurality of solar cells includes seven solar cells. In some embodiments, the first plurality of solar cells includes eight solar cells. In some embodiments, the first plurality of solar cells includes nine solar cells. In some embodiments, the first plurality of solar cells includes more than nine solar cells. In some embodiments, the second plurality of solar cells includes one solar cell. In some embodiments, the second plurality of solar cells includes two solar cells. In some embodiments, the second plurality of solar cells includes three solar cells. In some embodiments, the second plurality of solar cells includes more than three solar cells.
In some embodiments, the first plurality of solar cells extends in a first direction, and the second plurality of solar cells extends in a second direction. In some embodiments, the first direction is the same as the second direction. In some embodiments, the first direction is different than the second direction. In some embodiments, the first direction is perpendicular to the second direction.
In some embodiments, one or more of the photovoltaic modules includes an encapsulant layer. In some embodiments, the encapsulant layer encapsulates both the first plurality of solar cells and the second plurality of solar cells. In some embodiments, a first encapsulant layer encapsulates the first plurality of solar cells. In some embodiments, a second encapsulant layer encapsulates the second plurality of solar cells. In some embodiments, the first plurality of solar cells are not encapsulated. In some embodiments, the second plurality of solar cells are not encapsulated. In some embodiments, the encapsulant layer encapsulates a top surface and a bottom surface of the solar cells of the first plurality of solar cells and/or the solar cells of the second plurality of solar cells. In some embodiments, the encapsulant layer includes a polyolefin elastomer (POE).
In some embodiments, one or more of the photovoltaic modules includes a frontsheet. In some embodiments, the frontsheet is above an upper surface of the encapsulant layer. In some embodiments, the frontsheet is a top or uppermost layer of the photovoltaic module. In some embodiments, the frontsheet includes a polymer layer. In some embodiments, the frontsheet includes a glass layer. In some embodiments, the frontsheet includes one or more polymer layers and/or one or more glass layers. In some embodiments, one of the glass layers is juxtaposed with the encapsulant layer. In some embodiments, one of the polymer layers is the top or uppermost layer of the photovoltaic module. In some embodiments, the polymer layer includes one or more of an ethylene tetrafluoroethylene (ETFE) material and/or layer, or a polyolefin elastomer (POE) material and/or layer, and/or a combination thereof. In some embodiments, the frontsheet includes (from top or uppermost layer to bottom or lowermost layer, with the bottom layer being juxtaposed with the encapsulant layer, and the top layer being opposite the bottom layer) an ethylene tetrafluoroethylene (ETFE) layer, a polyolefin elastomer (POE) layer, and a glass layer. In some embodiments, the materials and/or layers are in a different order.
In some embodiments, one or more of the photovoltaic modules includes a backsheet. In some embodiments, the backsheet is below a lower surface of the encapsulant layer. In some embodiments, the backsheet includes a polymer material. In some embodiments, the backsheet includes one or more of a dielectric material and/or layer, a thermoplastic polyolefin (TPO) material and/or layer, and/or a continuous fiber tape (CFT) material and/or layer, and/or combinations thereof. In some embodiments, the backsheet includes (from top or uppermost layer to bottom or lowermost layer, with the top layer being juxtaposed with the encapsulant layer, and the bottom layer being opposite the top layer) a dielectric layer, a POE layer, a TPO layer, and a CFT layer. In some embodiments, the materials and/or layers are in a different order.
In some embodiments, one or more of the photovoltaic modules includes a first portion and a second portion, wherein the first portion extends between the first end and the first location, and wherein the second portion extends between the first location and the second end. In some embodiments, the second portion includes a wireway. In some embodiments, the first plurality of solar cells is positioned within the first portion. In some embodiments, the second plurality of solar cells is positioned within the second portion. In some embodiments, the first portion extends along a first plane. In some embodiments, the second portion extends along a second plane. In some embodiments, the first plane is offset from the second plane.
In some embodiments, the second plane is offset vertically relative to the first plane. In some embodiments, the second plane is offset vertically relative to the first plane such that when the photovoltaic module is positioned on a horizontal surface, at least a portion of the second plane is at a different vertical height than at least a portion of the first plane. In some embodiments, the second plane is offset vertically relative to the first plane such that when the photovoltaic module is positioned on a roof deck, at least a portion of the second plane is at a different vertical height than at least a portion of the first plane.
In some embodiments, the first portion is substantially flat. In some embodiments, the second portion is substantially flat. In some embodiments, the second portion is offset from the first portion. In some embodiments, the second portion is stepped relative to the first portion. In some embodiments, the second portion is curved. In some embodiments, there is a stepped, curved, and/or offset transition portion between the first portion and the second portion.
In some embodiments, the first plurality of solar cells includes at least a first string. In some embodiments, the second plurality of solar cells includes at least a second string. In some embodiments, first string extends in a first direction. In some embodiments, the second string extends in a second direction. In some embodiments, the first direction is the same as the second direction. In some embodiments, the first direction is different than the second direction. In some embodiments, the first and second directions are perpendicular to one another. In some embodiments, the string connects the solar cells of the first plurality of solar cells and the solar cells of the second plurality of solar cells.
In some embodiments, the system further includes a junction box. In some embodiments, the junction box is in electrical connection with the first plurality of solar cells. In some embodiments, the junction box is in electrical connection with the second plurality of solar cells. In some embodiments, the junction box is in electrical connection with the first plurality of solar cells and the second plurality of solar cells.
In some embodiments, one or more of the photovoltaic modules includes a first frontsheet layer. In some embodiments, the first frontsheet layer is above an upper surface of the encapsulant layer and an upper surface of the first plurality of solar cells. In some embodiments, one or more of the photovoltaic modules includes a second frontsheet layer. In some embodiments, the second frontsheet layer is above the upper surface of the encapsulant layer and an upper surface of the second plurality of solar cells.
In some embodiments, one or more of the photovoltaic modules omits a frontsheet over the second plurality of solar cells. In some embodiments, one or more of the photovoltaic modules omits one or more layers of the frontsheet over the second plurality of solar cells. In some embodiments, one or more of the photovoltaic modules omits a glass layer of the frontsheet over the second plurality of solar cells.
In some embodiments, the second portion is at one edge or end of the photovoltaic module. In some embodiments, a third portion is at an opposite end of edge of the photovoltaic module. In some embodiments, the third portion is in accordance with the description and illustration of the second portion. In some embodiments, the third portion includes a third plurality of solar cells. In some embodiments, the third plurality of solar cells is in accordance with the description and illustration of the second plurality of solar cells. In some embodiments, the third portion omits solar cells.
In some embodiments, one or more of the photovoltaic modules includes one or more electrical components. In some embodiments, one or more of the photovoltaic modules includes a junction box. In some embodiments, the one or more electrical components includes power electronics. In some embodiments, the power electronics includes a power optimizer, a bypass diode, system monitoring electronic components, a rapid shutdown device, an electronic communication component, or combinations thereof. In some embodiments, one or more of the photovoltaic modules includes a powered junction module. In some embodiments, the one or more electrical components are positioned on or form a portion of a top surface or face of the photovoltaic module. In some embodiments, the one or more electrical components are positioned on or form a portion of a bottom surface of face of the photovoltaic module. In some embodiments, the one or more electrical components are positioned on or formed a portion of both a top face and a bottom face of the photovoltaic module. In some embodiments, the one or more electrical components are positioned on or form a portion of the first portion of the photovoltaic module. In some embodiments, the one or more electrical components are positioned on or form a portion of a top face of the second portion of the photovoltaic module. In some embodiments, the one or more electrical components are positioned on or form a portion of a top face of both the first portion and the second portion of the photovoltaic module. In some embodiments, one or more electrical components are positioned on a top surface and/or a bottom surface of the first portion. In some embodiments, one or more electrical components are positioned on a top surface and/or a bottom surface of the second portion.
With reference to the drawings,
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In some embodiments, the photovoltaic module 500 includes a frontsheet 506. In some embodiments, the frontsheet 506 includes a first layer. In some embodiments, the first layer is a glass layer. In some embodiments, the first layer is a polymer layer. In some embodiments, the first layer is the uppermost layer of the photovoltaic module 500. In some embodiments, the frontsheet 506 includes a plurality of layers. In some embodiments, the frontsheet 506 includes a glass layer, a polymer layer above the glass layer, and an adhesive layer between the glass layer and the polymer layer. In some embodiments, the polymer layer is the uppermost layer of the photovoltaic module 500.
In some embodiments, the photovoltaic module 500 includes a backsheet 508. In some embodiments, the backsheet 508 is the lowermost layer of the photovoltaic module 500. In some embodiments, the backsheet 508 includes a first layer 510. In some embodiments, the backsheet 508 only includes the first layer 510. In some embodiments, the backsheet 508 includes a second layer 512. In some embodiments, the second layer 512 is below the first layer 510. In some embodiments, the backsheet 508 includes an adhesive layer 514. In some embodiments, the adhesive layer 514 is between the first layer 510 and the second layer 512. In some embodiments, the first layer 510 is composed of a polymer. In some embodiments, the first layer 510 is composed of polyethylene terephthalate (PET). In some embodiments, the first layer 510 is composed of thermoplastic polyolefin (TPO). In some embodiments, the second layer 512 is composed of a polymer. In some embodiments, the second layer 512 is composed of TPO. In some embodiments, the second layer 512 is composed of PET. In some embodiments, the adhesive layer 514 is composed of polyolefin elastomer (POE).
In some embodiments, the photovoltaic module 500 includes a first end 516, a second end 518 opposite the first end 516, and a hinge region 520 between the first end 516 and the second end 518. In some embodiments, the photovoltaic module 500 includes a first portion 522 extending from the first end 516 to the hinge region 520. In some embodiments, the first plurality of solar cells 502a is in the first portion 522. In some embodiments, the photovoltaic module 500 includes a second portion 524 extending from the second end 518 to the hinge region 520. In some embodiments, the second plurality of solar cells 502b is in the second portion 524. In some embodiments, the second portion 524 includes a wireway. In some embodiments, the first portion 522 extends along a first plane. In some embodiments, the second portion 524 extends along a second plane. In some embodiments, the first plane is offset from the second plane as described above.
In some embodiments, at the hinge region 520, the photovoltaic module 500 is flexible, bendable, or moveable. In some embodiments, a thickness of photovoltaic module at the hinge region 520 is less than a thickness of the photovoltaic module in the first portion 522 and/or the second portion 524.
In some embodiments, a frontsheet 506 includes a first gap G1. In some embodiments, the first gap G1 is located at or proximate to the hinge region 520. In some embodiments, the first gap G1 extends from an upper surface of the frontsheet 506 to an opposite, lower surface of the frontsheet 506. In some embodiments, the first encapsulant layer 504a of the encapsulant 504 includes a second gap G2. In some embodiments, the second gap G2 is located at or proximate to the hinge region 520. In some embodiments, the second gap G2 extends from an upper surface of the first encapsulant layer 504a of the encapsulant 504 to an opposite, lower surface of the first encapsulant layer 504a. In some embodiments, the second encapsulant layer 504b of the encapsulant 504 includes a third gap G3. In some embodiments, the third gap G3 is located at or proximate to the hinge region 520. In some embodiments, the third gap G3 extends from an upper surface of the second encapsulant layer 504b of the encapsulant 504 to an opposite, lower surface of the second encapsulant layer 504b. In some embodiments, the first gap G1 has a first width. In some embodiments, the second gap G2 has a second width. In some embodiments, the third gap G3 has a third width. In some embodiments, the first width of the first gap G1 is equal or substantially equal to the second width of the second gap G2. In some embodiments, the first width of the first gap G1 is equal or substantially equal to the third width of the third gap G3. In some embodiments, the second width of the second gap G2 is equal or substantially equal to the third width of the second gap G3. In some embodiments, each of the widths of the first, second, and third gaps G1, G2, G3 are different from one or more of the other widths. In some embodiments, the first, second, and third gaps G1, G2, G3 are aligned or substantially aligned with one another in a vertical or transverse direction. In some embodiments, the first gap G1 is in communication with the second gap G2. In some embodiments, the backsheet 508 extends from the first end 516 to the second end 518. In some embodiments, the backsheet 508 spans and extends across the third gap G3.
In some embodiments, the photovoltaic module 500 includes an electrical connector 530. In some embodiments, the electrical connector 530 electrically connects the first plurality of solar cells 502a to the second plurality of solar cells 502b. In some embodiments, the electrical connector 530 is mechanically connected to at least one of the first plurality of solar cells 502a and at least one of the second plurality of solar cells 502b. In some embodiments, the electrical connector 530 spans and extends across the second gap G2 of the first encapsulant layer 504a and the third gap G3 of the second encapsulant layer 504b. In some embodiments, the electrical connector 530 is between the solar cells 502 and the second encapsulant layer 504b. In some embodiments, the electrical connector 530 is an electrical wire, cable, string, stringing wire, busbar, bussing or ribbon. In some embodiments, the electrical connector 530 is a multi-stranded electrical wire. In some embodiments, the electrical connector 530 includes a solid core wire. In some embodiments, the electrical connector 530 is flexible. In some embodiments, the photovoltaic module 500 includes a plurality of the electrical connectors 530. In some embodiments, the diameter of the electrical connector 530 is 100 um to 500 um, e.g., 100 um, 150 um, 200 um, 250 um, 300 um, 350 um, 400 um, 450 um, 500 um, including ranges between any of the foregoing values.
In some embodiments, the photovoltaic module 500 includes a first insulating layer 532. In some embodiments, the first insulating layer 532 is located between the first encapsulant layer 504a and the electrical connector 530. In some embodiments, the first insulating layer 532 is above the electrical connector 530. In some embodiments, the first insulating layer 532 is located at or proximate to the hinge region 520. In some embodiments, the first insulating layer 532 spans and extends across the first gap G1 of the frontsheet 506, the second gap G2 of the first encapsulant layer 504a, and the third gap G3 of the second encapsulant layer 504b. In some embodiments, the first insulating layer 532 has a first length. In some embodiments, the first length is greater than the first width of the first gap G1. In some embodiments, the first length is greater than the second width of the second gap G2. In some embodiments, the first length is greater than the third width of the third gap G3.
Referring to
In some embodiments, each or both of the first insulating layer 532 and the second insulating layer 533 is composed of a polymer. In some embodiments, each or both of the first insulating layer 532 and the second insulating layer 533 is composed of PET. In some embodiments, each or both of the first insulating layer 532 and the second insulating layer 533 is composed of clear PET. In some embodiments, each or both of the first insulating layer 532 and the second insulating layer 533 is composed of TPO.
In some embodiments, the electrical connector 530 is physically decoupled from the encapsulant 504 locally at the hinge region 520 (flexible hinge location) of the laminate structure of the photovoltaic module 500 by the first gap G1 of the frontsheet 506, the second gap G2 of the first encapsulant layer 504a, and the third gap G3 of the second encapsulant layer 504b, above and below the string of the solar cells 502. In some embodiments, each of the first insulating layer 532 and the second insulating layer 533 prevents the open gaps G1, G2, G3 from flooding with reflow encapsulant material of the encapsulant 504 during the lamination process of the photovoltaic module 500. In some embodiments, decoupling the outer insulation strain from the electrical connector 530 in the hinge region 520 enables the electrical connector 530 to be subjected to increased bending cycles without strain hardening or cracking. In some embodiments, the increased bending cycles are over 50 cycles.
Referring to
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In some embodiments, the second portion 604 is a wireway cover. In some embodiment, the second portion 604 has a curved shaped. In some embodiment, the second portion 604 has a trapezoid cross-sectional shape. In some embodiments, the second portion 604 has a linear, flat upper portion 607 and a pair of sidewalls 609 extending obliquely from the upper portion 607. In some embodiments, the second portion 604 includes a base layer 606 and an outer layer 608 attached to the base layer 606. In some embodiments, the outer layer 608 is attached to the base layer 606 by an adhesive 610. In some embodiments, the outer layer 608 is attached to the base layer 606 by heat welding. In some embodiments, the outer layer 608 is attached to the base layer 606 by ultrasonic welding. In some embodiments, the outer layer 608 is attached to the base layer 606 by thermal bonding.
In some embodiments, the base layer 606 is a composed of a rigid material. In some embodiments, the base layer 606 is composed of a polymer. In some embodiments, the base layer 606 is composed of a reinforced thermoplastic. In some embodiments, the base layer 606 is composed of metal. In some embodiments, the outer layer 608 is composed of a polymer. In some embodiments, the outer layer 608 is composed of thermoplastic polyolefin (TPO).
In some embodiments, the second portion 604 includes at least one solar cell 612. In some embodiments, the at least one solar cell 612 includes a plurality of solar cells 612. In some embodiments, the at least one solar cell 612 is encapsulated by an encapsulant 614. In some embodiments, a frontsheet 616 is above the encapsulant 614. In some embodiments, a frontsheet 616 is adhered to the encapsulant 614. In some embodiments, the frontsheet 616 includes a glass layer. In some embodiment, the frontsheet 616 includes a polymer layer. In some embodiments, the frontsheet 616, the encapsulant 614, and the at least one solar cell 612 are laminated. In some embodiments, the laminated frontsheet 616, the encapsulant 614, and the at least one solar cell 612 are attached to an upper surface 618 of the outer layer 608. In some embodiments, the laminated frontsheet 616, the encapsulant 614, and the at least one solar cell 612 are attached to an upper surface 618 of the outer layer 608 by lamination, an adhesive, welding, bonding or by the encapsulant 614.
Referring to
In some embodiments, the outer layer 608 is linear or flat or substantially linear or flat prior to installation on and with the base layer 606. In some embodiments, a laminate of the at least one solar cell 612, the encapsulant 614, and the frontsheet 616 is attached to the upper surface 618 of the outer layer 608. In some embodiments, the outer layer 608 is heated. In some embodiments, the outer layer 608 is heated at least to 150° C. In some embodiments, the outer layer 608 is heated above 150° C. In some embodiments, the outer layer 608 is heated with a heater, a heat gun, or by lamination of the outer layer 608 with the solar cell stack, namely, the at least one solar cell 612, the encapsulant 614, and the frontsheet 616. In some embodiments, under the heat, the outer layer 608 softens. In some embodiments, the heated outer layer 608 is applied to and over the inner layer 650 and the base layer 606 and conforms to the shape thereof. In some embodiments, when the temperature of the outer layer 608 is above its material melting point, welding of the outer layer 608 to the inner layer 650 is achieved. In some embodiments, the outer layer 608 is cooled.
Variations, modifications, and alterations to embodiments of the present disclosure described above will make themselves apparent to those skilled in the art. All such variations, modifications, alterations and the like are intended to fall within the spirit and scope of the present disclosure, limited solely by the appended claims.
While several embodiments of the present disclosure have been described, it is understood that these embodiments are illustrative only, and not restrictive, and that many modifications may become apparent to those of ordinary skill in the art. For example, all dimensions discussed herein are provided as examples only, and are intended to be illustrative and not restrictive.
Any feature or element that is positively identified in this description may also be specifically excluded as a feature or element of an embodiment of the present as defined in the claims.
The disclosure described herein may be practiced in the absence of any element or elements, limitation or limitations, which is not specifically disclosed herein. The terms and expressions which have been employed are used as terms of description and not of limitation, and there is no intention in the use of such terms and expressions of excluding any equivalents of the features shown and described or portions thereof, but it is recognized that various modifications are possible within the scope of the disclosure.
This application is a Section 111(a) application relating to and claiming the benefit of commonly owned, co-pending U.S. Provisional Patent Application Ser. No. 63/621,474, filed Jan. 16, 2024, entitled “ROOFING SYSTEM INCLUDING PHOTOVOLTAIC MODULE,” the contents of which is incorporated herein by reference in its entirety.
Number | Date | Country | |
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63621474 | Jan 2024 | US |