Solar cell module
View Patent ↗A second protective member faces a first protective member. A bonding layer is disposed between the first and the second protective member. A solar cell includes a first main surface facing a side of the first protective member and a second main surface facing a side of the second protective member. A wiring member disposed on the second main surface. The bonding layer includes a first bonding layer disposed between the first protective member and the solar cell and made of a transparent resin a second bonding layer disposed between the second protective member and the solar cell and made of a colored resin, and a third bonding layer disposed between the second bonding layer and the solar cell and made of a transparent resin, and the second bonding layer is in contact with a main surface of the wiring member on a side of the second protective member.
1. A solar cell module comprising:
a first protective member;
a second protective member facing the first protective member at a distance;
a bonding layer disposed between the first protective member and the second protective member;
a solar cell disposed within the bonding layer, the solar cell having a first main surface facing a side of the first protective member and a second main surface facing a side of the second protective member; and
a wiring member disposed on the second main surface of the solar cell and containing Cu, wherein
the bonding layer includes:
a first bonding layer portion disposed between the first protective member and the solar cell and made of a transparent resin;
a second bonding layer portion disposed between the second protective member and the solar cell and made of a resin that is colored; and
a third bonding layer portion disposed between the second bonding layer portion and the solar cell and made of a transparent resin,
in a cross section of the solar cell and the wiring member, the second bonding layer portion is in contact with a main surface of the wiring member on a side of the second protective member, and
in the cross section of the solar cell and the wiring member, the third bonding layer portion is in contact with a side surface of the wiring member.
2. The solar cell module according to claim 1 , wherein
the wiring member includes:
a wiring member body made of copper or a copper alloy; and
a coating layer covering the wiring member body and made of silver or a silver alloy.
3. The solar cell module according to claim 2 , wherein a portion of the coating layer located on a corner of the wiring member body is thinner than other regions of the wiring member body.
4. The solar cell module according to claim 2 , wherein the wiring member comprises a pressed base material with both main surfaces flat.
5. The solar cell module according to claim 1 , wherein an irregularity is provided on the other main surface of the wiring member on a side of the first protective member, and the main surface on the side of the second protective member is flat.
6. The solar cell module according to claim 1 , wherein at least a portion of the wiring member is within the second bonding layer portion.
7. The solar cell module according to claim 1 , further comprising a resin adhesive layer bonding the solar cell and the wiring member to each other.
8. The solar cell module according to claim 1 , wherein the first protective member is formed of a glass sheet, and the second protective member is formed of a resin sheet.
9. The solar cell module according to claim 1 , wherein the second bonding layer portion comprises white pigment.
10. The solar cell module according to claim 9 , wherein the white pigment is titanium dioxide.
11. The solar cell module according to claim 1 , wherein the third bonding layer portion is in contact with the second main surface of the solar cell.
12. The solar cell module according to claim 1 , wherein a distance between the main surface of the wiring member and the second protective member is equal to the thickness of the second bonding layer portion.