Photovoltaic roofing elements and photovoltaic roofing systems
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02S-020/25
E04D-013/16
E04D-013/158
E04B-001/70
F24J-002/52
E04D-013/04
H01L-031/048
H02S-020/23
H01L-031/042
E04D-001/12
E04D-001/30
E04D-013/00
E04D-013/14
출원번호
US-0993901
(2016-01-12)
등록번호
US-9755573
(2017-09-05)
발명자
/ 주소
Livsey, Robert D.
Gombarick, Joseph Charles
Chihlas, Peter
Kalkanoglu, Husnu M.
Blackburn, Michael E.
Steffes, Stephen W.
Jacobs, Gregory F.
Noone, Michael J.
출원인 / 주소
CertainTeed Corporation
대리인 / 주소
McDonnell Boehnen Hulbert & Berghoff LLP
인용정보
피인용 횟수 :
0인용 특허 :
17
초록▼
The present invention relates generally to the photovoltaic generation of electrical energy. The present invention relates more particularly to photovoltaic arrays for use in photovoltaically generating electrical energy. Aspects of the present invention provide a variety of photovoltaic roofing ele
The present invention relates generally to the photovoltaic generation of electrical energy. The present invention relates more particularly to photovoltaic arrays for use in photovoltaically generating electrical energy. Aspects of the present invention provide a variety of photovoltaic roofing elements and systems that include, for example, interlocking geometries to provide for water handling and integration with conventional roofing materials; and wire management features that can protect wiring and associated electrical components from physical and/or environmental damage.
대표청구항▼
1. A photovoltaic roofing system disposed on a roof deck having a top end and a bottom end, the photovoltaic roofing system comprising: a plurality of photovoltaic roofing elements each comprising a rigid frame structure having an upward-facing surface and a downward-facing surface having a top end
1. A photovoltaic roofing system disposed on a roof deck having a top end and a bottom end, the photovoltaic roofing system comprising: a plurality of photovoltaic roofing elements each comprising a rigid frame structure having an upward-facing surface and a downward-facing surface having a top end and a bottom end, the rigid frame structure having an attachment zone and an exposure zone, with the exposure zone disposed toward the bottom end of the rigid frame structure, and the attachment zone disposed toward the top end of the rigid frame structure, wherein the bottom end of the attachment zone is separated from the top end of the exposure zone by a first raised sidewall extending from the upward facing surface of the rigid frame structure; andone or more photovoltaic elements held in the exposure zone of the rigid frame structure,the photovoltaic roofing elements being contiguously disposed on the roof deck, the contiguously-disposed photovoltaic elements together having a top edge facing the top end of the roof deck, a bottom edge facing the bottom end of the roof deck, and two side edges, the photovoltaic roofing elements including sidelap portions that interlock to provide water drainage channels;a plurality of roofing elements disposed adjacent the contiguously-disposed photovoltaic roofing elements, along their side edges; andside flashing elements disposed along the side edges of the contiguously-disposed photovoltaic roofing elements, the side flashing elements having a cross-sectional shape comprising a vertically-extending feature and a flange extending away from a lateral side at the downward end of the vertically-extending feature, with the flange facing away from the contiguously-disposed photovoltaic roofing elements and being at least partially disposed between a roofing element and the roof deck, the vertically-extending feature including a matched interlocking geometry that interlocks with a sidelap portion of an adjacent photovoltaic roofing element. 2. The photovoltaic roofing system according to claim 1, wherein the rigid frame structure of each photovoltaic roofing element is unitary. 3. The photovoltaic roofing system according to claim 1, wherein in each photovoltaic roofing element the attachment zone is defined at a top end by a first raised lip extending upward with respect to the upward-facing surface of the rigid frame structure. 4. The photovoltaic roofing system according to claim 3, wherein in each photovoltaic roofing element the rigid frame structure includes one or more mounting tabs extending from the first raised lip into the attachment zone. 5. The photovoltaic roofing system according to claim 1, wherein each photovoltaic roofing element further comprises one or more additional raised sidewalls that together with the first raised sidewall at least partially define an area in which the one or more photovoltaic elements are held. 6. The photovoltaic roofing system of claim 5, wherein in each photovoltaic roofing element, the one or more photovoltaic elements and/or a transparent cover element fit within 3 mm of the first raised sidewall and the one or more additional raised sidewalls. 7. The photovoltaic roofing system of claim 5, wherein in each photovoltaic roofing element, wherein the area in which the one or more photovoltaic elements are held has an upward-facing base surface, and wherein the first raised sidewall and the one or more additional raised sidewalls extend above the base surface by at least about 2 mm. 8. The photovoltaic roofing system of claim 5, wherein in each photovoltaic roofing element, each of the first raised sidewalls and the one or more additional raised sidewalls are sealed to the photovoltaic element by an adhesive or sealant. 9. The photovoltaic roofing system of claim 5, wherein in each photovoltaic roofing element, the one or more additional raised sidewalls includes a bottom sidewall disposed at the bottom end of the area in which the one or more photovoltaic elements are held, and wherein the bottom sidewall is lower than the top surface of the one or more photovoltaic elements by an amount in the range of about 0.1 mm to about 5 mm. 10. The photovoltaic roofing system of claim 1, wherein in each photovoltaic roofing element, the one or more photovoltaic elements and/or a transparent cover element fit within 3 mm of the first raised sidewall. 11. The photovoltaic roofing system of claim 1, wherein in each photovoltaic roofing element, wherein the area in which the one or more photovoltaic elements are held has an upward-facing base surface, and wherein the first raised sidewall extends above the base surface by at least about 2 mm. 12. The photovoltaic roofing system of claim 1, wherein in each photovoltaic roofing element, an adhesive or sealant seals an edge of a photovoltaic element to the first raised sidewall. 13. The photovoltaic roofing system of claim 1, wherein in each photovoltaic roofing element, the rigid frame structure includes sidelap portions disposed at the lateral edges of the rigid frame structure and having geometries interlocking with adjacent photovoltaic roofing elements to provide water drainage channels. 14. The photovoltaic roofing system of claim 13, wherein in each photovoltaic roofing element, the sidelap portion at one lateral edge includes an upward-facing water drainage channel; and the sidelap portion at the other lateral edge includes a downward-facing flange disposed in the upward-facing water drainage channel of an adjacent photovoltaic roofing element. 15. The photovoltaic roofing system of claim 1, wherein each photovoltaic roofing element further includes a leading edge extension extending from the bottom edge of the area in which the photovoltaic elements are held, the leading edge extension not spanning the entire length of the frame structure. 16. The photovoltaic roofing system of claim 15, wherein in each photovoltaic roofing element, the leading edge extension includes a recess on the downward-facing surface of the leading edge extension, in which fits a raised lip at the top end of the attachment zone of an underlying photovoltaic roofing element. 17. The photovoltaic roofing system of claim 1, wherein in each photovoltaic roofing element, the downward-facing surface of the rigid frame structure includes a ridge disposed toward the bottom end of the downward-facing surface of the rigid frame structure, and wherein the upward-facing surface of the rigid frame structure includes a channel disposed near the bottom end of the attachment zone, and wherein the ridge interlocks with the channel of underlying photovoltaic roofing element. 18. The photovoltaic roofing system of claim 1, wherein in each photovoltaic roofing element, the rigid frame structure comprises one or more downward-facing support structures disposed on the downward-facing surface of the rigid frame structure. 19. The photovoltaic roofing system of claim 1, wherein in each photovoltaic roofing element, the rigid frame structure comprises a plurality of slats that hold the one or more photovoltaic elements. 20. The photovoltaic roofing system according to claim 1, wherein the vertically-extending features of the side flashing elements along a first lateral edge of the contiguously-disposed photovoltaic roofing elements include a downward-facing flange, disposed in upward-facing channels of the photovoltaic roofing elements disposed along the first lateral edge; and wherein the vertically-extending features of the side flashing elements along a second lateral edge of the contiguously-disposed photovoltaic roofing elements include an upward-facing water drainage channel, into which downward-facing flanges of the photovoltaic roofing elements disposed along the second lateral edge are disposed. 21. The photovoltaic roofing system according to claim 20, further comprising one or more top flashing elements disposed along the top edge of the contiguously-disposed photovoltaic roofing elements, the one or more top flashing elements having a bottom end disposed over the top edge of the contiguously-disposed photovoltaic roofing elements; and a top end disposed under one or more roofing elements disposed along the top edge of the contiguously-disposed photovoltaic roofing elements. 22. The photovoltaic roofing system according to claim 20, further comprising a cant strip disposed under the bottom edge of the contiguously-disposed photovoltaic elements and on top of an underlying course of roofing elements. 23. The photovoltaic roofing system of claim 1, wherein in each photovoltaic roofing element, the area in which the one or more photovoltaic elements are held includes an upward-facing base surface, and wherein the rigid frame structure includes one or more raised structures extending upward from the base surface, the one or more photovoltaic elements being disposed on the one or more raised structures. 24. The photovoltaic roofing system of claim 23, wherein the one or more raised structures are one or more continuous ridges. 25. The photovoltaic roofing system of claim 23, wherein the raised structures are between about 10 mils and about 100 mils in height.
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