Concentrating solar power generation unit, concentrating solar power generation module, concentrating solar power generation panel, and concentrating solar power generation device

摘要

When upper-lower positional relationship on an optical path is defined such that the primary concentrating portion is at an upper position than the secondary concentrating portion, the secondary concentrating portion includes: a secondary lens provided above the power generating element; a lens supporting portion being a mount, the mount surrounding the power generating element and configured to have the secondary lens mounted thereto, the lens supporting portion being configured to support the secondary lens in a state where the secondary lens is disposed with a gap above the power generating element; a covering portion made of translucent resin, the covering portion being configured to cover a surface of the secondary lens; and a sealing portion made of translucent resin, the sealing portion filling a space of the gap between the power generating element and the secondary lens in the lens supporting portion, and an upper end face of the lens supporting portion includes: an inner edge in contact with the secondary lens; and a resin receiving portion extending from the inner edge to an outer side without coming into contact with the secondary lens, the resin receiving portion receiving a lower end of the covering portion.