Flexible module for combining solar photovoltaic panel and solar thermal panel

A tight-contact photovoltaic-thermal panel structure, comprising:

• a photovoltaic panel;
• a thermal collector stacked on the photovoltaic panel and contacting a back surface of the photovoltaic panel;
• and
• a fastening module bringing the back surface of the photovoltaic panel and the thermal collector in tight contact with each other,
• wherein the fastening module comprises:
• a plurality of elastic members providing an elastic force to press the thermal collector from behind a back surface of the thermal collector to the photovoltaic panel;
• a supporting member supporting the plurality of elastic members;
• and
• a pair of clips provided on two opposite ends of the supporting member to fix the supporting member to edges of a photovoltaic-thermal panel,
• wherein the plurality of elastic members are connected side by side in series along a width direction of the photovoltaic-thermal panel, and
• wherein a widthwise stretchable part is disposed between two adjacent elastic members among the plurality of elastic members.

A fastening module configured to tightly join a photovoltaic panel and a thermal collector, the fastening module bringing a back surface of the photovoltaic panel and the thermal collector in tight contact with each other in a photovoltaic-thermal panel including the photovoltaic panel and the thermal collector stacked one over the other, the fastening module comprising:

• a plurality of elastic members providing an elastic force to press the thermal collector from behind a back surface of the thermal collector to the photovoltaic panel;
• a supporting member supporting the plurality of elastic members;
• and
• a pair of clips provided on two opposite ends of the supporting member to fix the supporting member to edges of the photovoltaic-thermal panel,
• wherein the plurality of elastic members are connected side by side in series along a width direction of the photovoltaic-thermal panel, and
• wherein the pair of clips includes:
• a first clip including a surface supporting member in contact with a surface of the photovoltaic panel, a thickness-wise first extension member extending from the surface supporting member rearward in a thickness direction of the photovoltaic panel, and a first thickness adjustment part provided on the thickness-wise first extension member;
• a second clip including a thickness-wise second extension member connected to the supporting member and extending forward in the thickness direction from the supporting member and a second thickness adjustment part provided on the thickness-wise second extension member;
• and
• a clip fixing part fixing the first clip and the second clip.