Flexible connectors of building integrable photovoltaic modules for enclosed jumper attachment
View Patent ↗Provided are novel Building Integrable Photovoltaic (BIPV) modules having one or more connectors that are movable between extended and retracted positions. Connector adjustment may be performed in the field, for example, during installation of a module. In certain embodiments, a connector includes a connector body and extension body. The extension body flexibly attaches the connector body to the module and allows the connector body to move with respect to the module edge. In an extended position, the connector body is positioned closer to the edge and is configured to make electrical connections to a joiner connector for interconnecting with an adjacent module. In a retracted positioned, the connector body is positioned further from the edge and is configured to make electrical connections to a jumper for interconnecting the conductive elements of the connector. In certain embodiments, a jumper does not protrude beyond the edge when connected to the connector body.
1. A building integrable photovoltaic module comprising:
a photovoltaic insert comprising a front side, a back side, and an edge that defines a boundary of an exterior of the photovoltaic insert;
one or more photovoltaic cells disposed between the front side and the back side;
a cavity interposed between the front side and the back side, and extending through the edge of the photovoltaic insert and only partially through the photovoltaic insert; and
a module connector comprising a connector body and an extension body, wherein:
the connector body comprises two conductive elements,
at least one of the two conductive elements is electrically coupled to the one or more photovoltaic cells,
the extension body is flexible, having a first end that extends from a wall of the cavity and a second end that is connected to the connector body, and
the module connector is located within the cavity and movable between an extended position and a retracted position, wherein:
when in the extended position and the retracted position, the module connector is wholly within the cavity and does not extend beyond any boundary of the cavity nor beyond the edge of the photovoltaic insert,
when in the extended position, the connector body is separated from the edge of the photovoltaic insert by a first distance, and
when in the retracted position, the connector body is separated from the edge of the photovoltaic insert by a second distance that is greater than the first distance.
2. The building integrable photovoltaic module of claim 1 , wherein, in the extended position, the connector body is positioned less than about 20 millimeters from the edge of the photovoltaic insert.
3. The building integrable photovoltaic module of claim 1 , wherein the connector body moves by between about 3 millimeters and 20 millimeters between the extended position and the retracted position.
4. The building integrable photovoltaic module of claim 1 , wherein the extension body forms a loop around the connector body when the connector body is in the retracted position.
5. The building integrable photovoltaic module of claim 1 , wherein the connector body comprises one or more sockets enclosing the two conductive elements, the one or more sockets being substantially parallel to the back side of the photovoltaic insert.
6. The building integrable photovoltaic module of claim 1 , wherein the connector body is movable with respect to the back side of the photovoltaic insert in two or more directions and/or around one or more axes.
7. The building integrable photovoltaic module of claim 1 , wherein the connector body is movable with respect to the edge of the photovoltaic insert in at least a direction substantially perpendicular to the edge of the photovoltaic insert.
8. The building integrable photovoltaic module of claim 1 , wherein the extension body comprises two flexible conductors insulated by a flexible insulating sheath, the two flexible conductors are electrically insulated from each other and electrically coupled to the two conductive elements of the connector body.
9. The building integrable photovoltaic module of claim 8 , wherein each of the two flexible conductors comprises a flat conductive strip having a width-to-thickness ratio of at least about 10.
10. The building integrable photovoltaic module of claim 8 , wherein each of the two flexible conductors comprises a flat conductive strip having a width of between about 3 millimeters and about 18 millimeters and a thickness of between about 0.1 millimeters and about 0.6 millimeters.
11. The building integrable photovoltaic module of claim 8 , wherein the flexible insulating sheath comprises a base polymer material coated with a fluorinated polymer material.
12. The building integrable photovoltaic module of claim 11 , wherein the base polymer material comprises one or more of the following materials: polyethylene, polypropylene, and polyethylene terephthalate.
13. The building integrable photovoltaic module of claim 1 , wherein the connector body is configured to interlock with the back side of the photovoltaic insert in at least the extended position.
14. The building integrable photovoltaic module of claim 13 , wherein the connector body is allowed to move within a predetermined range with respect to the edge of the photovoltaic insert while at least in the retracted position to accommodate for thermal expansion.
15. The building integrable photovoltaic module of claim 1 , further comprising a jumper, wherein:
the jumper is electrically connected to the two conductive elements and connected to the connector body by an interlocking mechanism, and
when in the retracted position, the jumper does not protrude past the edge of the photovoltaic insert.
16. The building integrable photovoltaic module of claim 1 , further comprising a jumper, wherein:
the jumper is electrically connected to the two conductive elements and connected to the back side by an interlocking mechanism, and
when in the retracted position, the jumper does not protrude past the edge of the photovoltaic insert.
17. The building integrable photovoltaic module of claim 1 , wherein the extension body comprises a shaped portion to provide flexible attachment to the connector body.