Photovoltaic roofing systems and methods for installing them
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01L-031/042
H01L-031/05
E04D-013/18
출원번호
US-0494712
(2012-06-12)
등록번호
US-8468757
(2013-06-25)
발명자
/ 주소
Krause, Richard H.
Koch, Stephen A.
Shaw, Wayne E.
Jacobs, Gregory F.
Batt, Paul J.
출원인 / 주소
CertainTeed Corporation
대리인 / 주소
McDonnell Boehnen Hulbert & Berghoff LLP
인용정보
피인용 횟수 :
0인용 특허 :
23
초록▼
The present invention relates to photovoltaic roofing systems in which photovoltaic elements are disposed upon roofing elements such as shingles, tiles, shakes or slates. For example, in one embodiment, the present invention provides a photovoltaic roofing system comprising: a first plurality of hor
The present invention relates to photovoltaic roofing systems in which photovoltaic elements are disposed upon roofing elements such as shingles, tiles, shakes or slates. For example, in one embodiment, the present invention provides a photovoltaic roofing system comprising: a first plurality of horizontally-arranged roofing elements; a bus bar batten system extending across the headlap regions of the first plurality of roofing elements, the bus bar batten system comprising one or more rigid supports and an electrical interconnection system; a first plurality of photovoltaic elements, each disposed on a butt region of one of the first plurality of roofing elements, each operatively engaged with the electrical interconnection system of the bus bar batten system; and a second plurality of horizontally-arranged roofing elements disposed on the roof deck and covering the bus bar batten system and the headlap regions of the first plurality of horizontally-arranged roofing elements.
대표청구항▼
1. A photovoltaic roofing system for use on a roof deck, the photovoltaic roofing system comprising: a first plurality of horizontally-arranged roofing elements disposed on the roof deck, each having a headlap region and a butt region having a bottom end;a bus bar batten system disposed upon and ext
1. A photovoltaic roofing system for use on a roof deck, the photovoltaic roofing system comprising: a first plurality of horizontally-arranged roofing elements disposed on the roof deck, each having a headlap region and a butt region having a bottom end;a bus bar batten system disposed upon and extending across the headlap regions of the first plurality of roofing elements, the bus bar batten system comprising one or more rigid supports and an electrical interconnection system;a plurality of photovoltaic elements, each disposed on one of the first plurality of roofing elements, each operatively engaged with the electrical interconnection system of the bus bar batten system and tenaciously physically engaged with one or more rigid supports of the bus bar batten system, each photovoltaic element physically engaging with the bottom end of the butt region of the roofing element upon which it is disposed; anda second plurality of horizontally-arranged roofing elements disposed on the roof deck and covering the bus bar batten system and the headlap regions of the first plurality of horizontally-arranged roofing elements. 2. The photovoltaic roofing system according to claim 1, wherein the bus bar batten system is less than about 2 cm in vertical thickness. 3. The photovoltaic roofing system according to claim 1, wherein the roofing elements are slates, tiles or shakes. 4. The photovoltaic roofing system according to claim 1, wherein the roofing elements are flexible. 5. The photovoltaic roofing system according to claim 1, wherein the bus bar batten system alters the apparent thickness of the second plurality of horizontally-arranged roofing elements. 6. The photovoltaic roofing system according to claim 1, wherein the electrical interconnection system of the bus bar batten system includes quick-disconnect electrical connectors, and wherein the photovoltaic elements comprise quick-disconnect electrical connectors operatively engaged with the quick-disconnect electrical connectors of the bus bar batten system. 7. The photovoltaic roofing system according to claim 1, wherein the rigid supports of the bus bar batten system are made from plastic or wood. 8. A method of installing a photovoltaic roofing system according to claim 1 on a roof deck, the method comprising: disposing a first plurality of roofing elements on the roof deck in a horizontal arrangement, each having a headlap region and a butt region;disposing a bus bar batten system upon and extending across the headlap regions of the first plurality roofing elements, the bus bar batten system comprising one or more rigid supports and an electrical interconnection system;disposing a first plurality of photovoltaic elements on the butt regions of the first plurality of roofing elements and operatively engaging them with the electrical interconnection system of the bus bar batten system, tenaciously physically engaging them with the one or more rigid supports of the bus bar batten system and physically engaging each photovoltaic element with the bottom end of the butt region of the roofing element upon which it is disposed; anddisposing a second plurality of horizontally-arranged roofing elements on the roof deck so as to cover the bus bar batten system and the headlap regions of the first plurality of horizontally-arranged roofing elements. 9. The method according to claim 8, wherein the step of disposing a first plurality of photovoltaic elements on the butt regions of the first plurality of roofing elements and operatively engaging them with the electrical interconnection system of the bus bar batten system and tenaciously physically engaging them with the one or more rigid supports of the bus bar batten system is performed before the step of disposing the second plurality of horizontally-arranged roofing elements on the roof deck. 10. A method of installing a photovoltaic roofing system according to claim 1 on a roof deck, the method comprising: disposing a first plurality of photovoltaic roofing elements on the roof deck in a horizontal arrangement, each photovoltaic roofing element comprising a photovoltaic element affixed to a roofing substrate, each roofing substrate having a headlap region and a butt region;disposing a bus bar batten system upon and extending across the headlap regions of the roofing substrates of the first plurality of photovoltaic roofing elements, the bus bar batten system comprising one or more rigid supports and an electrical interconnection system;operatively engaging the photovoltaic elements with the electrical interconnection system of the bus bar batten system, tenaciously physically engaging them with the one or more rigid supports of the bus bar batten system, and physically engaging each photovoltaic element with the bottom end of the butt region of the roofing element upon which it is disposed; anddisposing a second plurality of horizontally-arranged roofing elements on the roof deck so as to cover the bus bar batten system and the headlap regions of the roofing substrates of the first plurality of horizontally-arranged roofing elements. 11. A photovoltaic roofing system for use on a roof deck, the photovoltaic roofing system comprising: a first plurality of horizontally-arranged roofing elements disposed on the roof deck, each having a headlap region and a butt region having a bottom end;a bus bar batten system disposed upon and extending across the headlap regions of the first plurality of roofing elements, the bus bar batten system comprising one or more rid supports and an electrical interconnection system;a plurality of photovoltaic elements, each disposed on one of the first plurality of roofing elements, each operatively engaged with the electrical interconnection system of the bus bar batten system and tenaciously physically engaged with one or more rigid supports of the bus bar batten system; anda second plurality of horizontally-arranged roofing elements disposed on the roof deck and covering the bus bar batten system and the headlap regions of the first plurality of horizontally-arranged roofing elements,wherein each rigid support comprises a linearly-extending channel facing the butt regions of the first plurality of horizontally-arranged roofing elements the channel having electrodes on its inner surface, the electrodes being operatively connected to the electrical interconnection system, and wherein the photovoltaic elements comprise electrodes that are engaged with the electrodes of the bus bar batten system. 12. The photovoltaic roofing system according to claim 11, wherein a frangible covering is disposed over areas of the channel that do not have a photovoltaic element engaged therein. 13. The photovoltaic roofing system according to claim 11, further comprising one or more caps disposed in the opening of the channel in areas that do not have a photovoltaic element engaged therein. 14. A method of installing a photovoltaic roofing system according to claim 11 on a roof deck, the method comprising: disposing a first plurality of roofing elements on the roof deck in a horizontal arrangement, each having a headlap region and a butt region;disposing a bus bar batten system upon and extending across the headlap regions of the first plurality roofing elements, the bus bar batten system comprising one or more rigid supports and an electrical interconnection system;disposing a first plurality of photovoltaic elements on the butt regions of the first plurality of roofing elements and operatively engaging them with the electrical interconnection system of the bus bar batten system and tenaciously physically engaging them with the one or more rigid supports of the bus bar batten system; anddisposing a second plurality of horizontally-arranged roofing elements on the roof deck so as to cover the bus bar batten system and the headlap regions of the first plurality of horizontally-arranged roofing elements,wherein each rigid support comprises a linearly-extending channel facing the butt regions of the first plurality of horizontally-arranged roofing elements the channel having electrodes on its inner surface, the electrodes being operatively connected to the electrical interconnection system, and wherein the photovoltaic elements comprise electrodes that are engagable with the electrodes of the bus bar batten system,the method further comprising engaging the electrodes of the photovoltaic elements with the electrodes of the bus bar batten system. 15. The method according to claim 14, wherein the step of disposing a first plurality of photovoltaic elements on the butt regions of the first plurality of roofing elements and operatively engaging them with the electrical interconnection system of the bus bar batten system and tenaciously physically engaging them with the one or more rigid supports of the bus bar batten system is performed before the step of disposing the second plurality of horizontally-arranged roofing elements on the roof deck. 16. A photovoltaic roofing system for use on a roof deck, the photovoltaic roofing system comprising: a first plurality of horizontally-arranged roofing elements disposed on the roof deck, each having a headlap region and a butt region having a bottom end;a bus bar batten system disposed upon and extending across the headlap regions of the first plurality of roofing elements, the bus bar batten system comprising one or more rid supports and an electrical interconnection system;a plurality of photovoltaic elements, each disposed on one of the first plurality of roofing elements, each operatively engaged with the electrical interconnection system of the bus bar batten system and tenaciously physically engaged with one or more rigid supports of the bus bar batten system; anda second plurality of horizontally-arranged roofing elements disposed on the roof deck and covering the bus bar batten system and the headlap regions of the first plurality of horizontally-arranged roofing elements,wherein each rigid support comprises a plurality of recesses facing the butt regions of the first plurality of horizontally-arranged roofing elements the recesses having one or more electrodes on an inner surface thereof, the electrical contacts being operatively connected to the electrical interconnection system, and wherein the photovoltaic elements comprise electrodes that are engaged with the electrical contacts of the bus bar batten system. 17. The photovoltaic roofing system according to claim 16, wherein the bus bar batten system has a frangible covering disposed over the openings of recesses that do not have a photovoltaic element disposed therein. 18. The photovoltaic roofing system according to claim 16, further comprising one or more caps disposed in the openings of recesses that do not have a photovoltaic elements disposed therein. 19. A method of installing a photovoltaic roofing system according to claim 11 on a roof deck, the method comprising: disposing a first plurality of photovoltaic roofing elements on the roof deck in a horizontal arrangement, each photovoltaic roofing element comprising a photovoltaic element affixed to a roofing substrate, each roofing substrate having a headlap region and a butt region;disposing a bus bar batten system upon and extending across the headlap regions of the roofing substrates of the first plurality of photovoltaic roofing elements, the bus bar batten system comprising one or more rigid supports and an electrical interconnection system;operatively engaging the photovoltaic elements with the electrical interconnection system of the bus bar batten system and tenaciously physically engaging them with the one or more rigid supports of the bus bar batten system; anddisposing a second plurality of horizontally-arranged roofing elements on the roof deck so as to cover the bus bar batten system and the headlap regions of the roofing substrates of the first plurality of horizontally-arranged roofing elements,wherein each rigid support comprises a linearly-extending channel facing the butt regions of the first plurality of horizontally-arranged roofing elements the channel having electrodes on its inner surface, the electrodes being operatively connected to the electrical interconnection system, and wherein the photovoltaic elements comprise electrodes that are engagable with the electrodes of the bus bar batten system,the method further comprising engaging the electrodes of the photovoltaic elements with the electrodes of the bus bar batten system. 20. A method of installing a photovoltaic roofing system according to claim 16 on a roof deck, the method comprising: disposing a first plurality of roofing elements on the roof deck in a horizontal arrangement, each having a headlap region and a butt region;disposing a bus bar batten system upon and extending across the headlap regions of the first plurality roofing elements, the bus bar batten system comprising one or more rigid supports and an electrical interconnection system;disposing a first plurality of photovoltaic elements on the butt regions of the first plurality of roofing elements and operatively engaging them with the electrical interconnection system of the bus bar batten system and tenaciously physically engaging them with the one or more rigid supports of the bus bar batten system; anddisposing a second plurality of horizontally-arranged roofing elements on the roof deck so as to cover the bus bar batten system and the headlap regions of the first plurality of horizontally-arranged roofing elements,wherein each rigid support comprises a plurality of recesses facing the butt regions of the first plurality of horizontally-arranged roofing elements the recesses having one or more electrodes on an inner surface thereof, the electrical contacts being operatively connected to the electrical interconnection system, and wherein the photovoltaic elements comprise electrodes that are engagable with the electrical contacts of the bus bar batten system,the method further comprising engaging the electrodes of the photovoltaic elements with the electrodes of the bus bar batten system. 21. The method according to claim 20, wherein the step of disposing a first plurality of photovoltaic elements on the butt regions of the first plurality of roofing elements and operatively engaging them with the electrical interconnection system of the bus bar batten system and tenaciously physically engaging them with the one or more rigid supports of the bus bar batten system is performed before the step of disposing the second plurality of horizontally-arranged roofing elements on the roof deck. 22. A method of installing a photovoltaic roofing system according to claim 16 on a roof deck, the method comprising: disposing a first plurality of photovoltaic roofing elements on the roof deck in a horizontal arrangement, each photovoltaic roofing element comprising a photovoltaic element affixed to a roofing substrate, each roofing substrate having a headlap region and a butt region;disposing a bus bar batten system upon and extending across the headlap regions of the roofing substrates of the first plurality of photovoltaic roofing elements, the bus bar batten system comprising one or more rigid supports and an electrical interconnection system;operatively engaging the photovoltaic elements with the electrical interconnection system of the bus bar batten system and tenaciously physically engaging them with the one or more rigid supports of the bus bar batten system; anddisposing a second plurality of horizontally-arranged roofing elements on the roof deck so as to cover the bus bar batten system and the headlap regions of the roofing substrates of the first plurality of horizontally-arranged roofing elements,wherein each rigid support comprises a plurality of recesses facing the butt regions of the first plurality of horizontally-arranged roofing elements the recesses having one or more electrodes on an inner surface thereof, the electrical contacts being operatively connected to the electrical interconnection system, and wherein the photovoltaic elements comprise electrodes that are engagable with the electrical contacts of the bus bar batten system,the method further comprising engaging the electrodes of the photovoltaic elements with the electrodes of the bus bar batten system.
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