Electrical connectors for building integrable photovoltaic modules
View Patent ↗Provided are novel building integrable photovoltaic (BIP) modules having flexible connectors and methods of interconnecting thereof. According to various embodiments, a BIP module includes one or more photovoltaic cells positioned on a support sheet and two or more electrical connectors attached to the support sheet. At least two conductive elements of these connectors are electrically coupled to the photovoltaic cells. One connector includes a connector body and an arm, which allows the connector body to move with respect to the support sheet at least in a direction perpendicular to the support sheet. This flexibility may be used to electrically interconnect modules as well as other purposes. Another connector also has a connector body, which may be flexibly or rigidly attached to the same support sheet. Positioning two connectors on opposite edges of the module allows forming a row of electrically interconnected modules.
1. A building integrable photovoltaic module comprising:
one or more photovoltaic cells positioned on a support sheet having a planar surface;
a first connector comprising a first connector body and a first arm, the first arm mechanically connecting the first connector body to the support sheet, the first connector body movable with respect to the support sheet at least in a direction perpendicular to the planar surface of the support sheet to form an electrical connection with an adjacent building integrable photovoltaic module, the first connector body comprising a first conductive element electrically coupled to the one or more photovoltaic cells; and
a second connector comprising a second connector body attached to the support sheet, the second connector body comprising a second conductive element electrically coupled to the one or more photovoltaic cells, the second connector configured to form an electrical connection with a second adjacent building integrable photovoltaic module.
2. The building integrable photovoltaic module of claim 1 , wherein the first arm comprises an extension of the support sheet.
3. The building integrable photovoltaic module of claim 1 , wherein the first arm comprises a flexible material and a flexible conductive pathway that allow the first arm to bend along a length of the first arm in the direction perpendicular to the planar surface of the support sheet.
4. The building integrable photovoltaic module of claim 1 , wherein the first arm comprising a pivoting axis at an interface with the support sheet.
5. The building integrable photovoltaic module of claim 1 , wherein the first connector body and/or the first arm comprises one or more of the following materials: polyethylene terephthalate, polybutylene terephthalate, polyphenylene sulfide, polyamide, polycarbonate, and polypropylene.
6. The building integrable photovoltaic module of claim 1 , wherein the first arm is sufficiently flexible to allow the first connector body to move at least about 1 millimeter with respect to the support sheet in a direction parallel to a length of the first arm, while maintaining the electrical connection between building integrable photovoltaic module and the adjacent building integrable photovoltaic module.
7. The building integrable photovoltaic module of claim 1 , wherein the first arm is sufficiently flexible to allow the first connector body to move by at least about 1 millimeter with respect to the support sheet in a direction perpendicular to a length of the first arm and parallel to the planar surface, while maintaining the electrical connection between building integrable photovoltaic module and the adjacent building integrable photovoltaic module.
8. The building integrable photovoltaic module of claim 1 , wherein the first connector body comprises a cavity configured to fit snugly over an adjacent second connector body of the second adjacent building integrable photovoltaic module.
9. The building integrable photovoltaic module of claim 8 , wherein the cavity has an opening facing towards the planar surface during installation.
10. The building integrable photovoltaic module of claim 8 , wherein the first conductive element comprises a pin positioned within the cavity and wherein the first connector body and/or the second connector body comprises one or more interlocking features.
11. The building integrable photovoltaic module of claim 1 , wherein the first connector body and/or the second connector body comprises one or more sealing features.
12. The building integrable photovoltaic module of claim 1 , wherein the first connector body further comprises an additional conductive element that is not electrically connected to the one or more photovoltaic cells.
13. The building integrable photovoltaic module of claim 1 , wherein the first connector and the second connector are parts of a moisture flap extending along a side of the one or more photovoltaic cells.
14. The building integrable photovoltaic module of claim 1 , wherein the second connector body is attached to the support sheet using a second arm.
15. The building integrable photovoltaic module of claim 14 , wherein the second arm is sufficiently flexible to allow the second connector body to move at least about 1 millimeter with respect to the support sheet in a direction parallel to a length of the second arm, while maintaining the electrical connection between building integrable photovoltaic module and the second adjacent building integrable photovoltaic module.
16. The building integrable photovoltaic module of claim 14 , wherein the second arm is sufficiently flexible to allow the second connector body to move by at least about 1 millimeter with respect to the support sheet in a direction perpendicular to a length of the second arm and parallel to the planar surface, while maintaining the electrical connection between building integrable photovoltaic module and the second adjacent building integrable photovoltaic module.
17. A method for installing a photovoltaic array, the method comprising
(a) providing a first building integrable photovoltaic module positioned on a building structure, the first building integrable photovoltaic module comprising a first connector having a first connector body and a first arm, the first arm mechanically connecting the first connector body to a first support sheet, the first connector body movable with respect to the first support sheet at least in a direction perpendicular to a planar surface of the first support sheet, the first connector body comprising a first conductive element electrically coupled to a first set of photovoltaic cells; and
(b) providing a second building integrable photovoltaic module comprising a second connector comprising a second connector body attached to a second support sheet, the second connector body comprising a second conductive element electrically coupled to a second set of photovoltaic cells; and
(c) positioning the first connector body over the second connector body to form an electrical connection between the first conductive element and the second conductive element.
18. The method of claim 17 , wherein the first building integrable photovoltaic module is movable with respect to the second building integrable photovoltaic module in one or more direction parallel to the planar surface of the first support sheet without interfering with the electrical connection between the first conductive element and the second conductive element.
19. The method of claim 17 , further comprising dispensing a sealing material and/or an adhesive material between the first connector body and the second connector body prior to positioning the first connector body over the second connector body.
20. The method of claim 17 , further comprising attaching the first support sheet and/or the second support sheet to the building structure.