Integral corner bypass diode interconnecting configuration for multiple solar cells

摘要

A photovoltaic solar cell assembly includes a bypass diode, a first and a second planar solar cell. Each of the first and the second solar cell includes a front facing side and a rear facing side, each rear facing side including a respective conductive surface, each front facing side including a respective current collector bar, and corresponding grid of metallic lines conductively coupled with the current collector bar. A first terminal of the bypass diode is electrically coupled with the conductive surface of the first solar cell. A second terminal of the bypass diode is electrically coupled with the current collector bar of the second solar cell. Electrical coupling of the bypass diode with the first solar cell and the second solar cell excludes any external wiring or busbar.

主权项

1. A photovoltaic solar cell assembly comprising:
a bypass diode; a first planar solar cell; and a second planar solar cell, each of the first solar cell and the second solar cell including a front facing side and a rear facing side opposite the front facing side, each rear facing side including a respective conductive surface, each front facing side including a respective current collector bar, and a corresponding grid of metallic lines conductively coupled with the current collector bar; wherein: each solar cell includes a first edge, a second edge, a third edge, and a fourth edge, a distance between the second edge and the fourth edge defining a characteristic width of each cell; each current collector bar comprises at least two conductively coupled collector bar segments, the at least two conductively coupled collector bar segments including a first collector bar segment that is substantially parallel to and proximate to the first edge, and a second collector bar segment that is substantially parallel to and proximate to the second edge, the second edge being orthogonal with respect to the first edge;
the bypass diode is disposed between the first planar solar cell and the second planar solar cell, proximate to a beveled corner edge of the first planar solar cell;a first terminal of the bypass diode is connected by way of a first electrical coupling to the conductive surface of the first solar cell, a proximal portion of the first electrical coupling being connected with the first terminal, a distal portion of the first electrical coupling underlying the rear facing side of the first solar cell;a second terminal of the bypass diode is connected by way of a second electrical coupling to the second collector bar segment of the current collector bar of the second solar cell a proximal portion of the second electrical coupling being connected with the second terminal, a distal portion of the second electrical coupling overlying the front facing side of the second solar cell; andeach of the first electrical coupling and the second electrical coupling excludes any external wiring or busbar.