Photovoltaic frame, photovoltaic module and method for manufacturing photovoltaic frame

A photovoltaic frame, comprising:

• a top support portion, a bottom support portion and a transverse edge portion, wherein the top support portion and the transverse edge portion are configured to form a holding slot, the top support portion has a bearing surface facing the holding slot, the bottom support portion is arranged opposite to the top support portion, and the transverse edge portion is located at one side of the top support portion away from the bottom support portion;
• and
• a first side edge portion and a second side edge portion, wherein the top support portion, the second side edge portion and the transverse edge portion are configured to form the holding slot and the first side edge portion is configured to connect the top support portion and the bottom support portion;
• wherein the photovoltaic frame is molded by a carbon steel sheet material after processing, the carbon steel sheet material comprises a plurality of portions to be bent, the photovoltaic frame is molded by bending the portions to be bent of the carbon steel sheet material, the carbon steel sheet material comprises a top surface and an opposing bottom surface;
• at least one of the plurality of portions to be bent has at least one groove recessed from the top surface toward the bottom surface, an extending direction of each of the portions to be bent is a first direction, and an extending direction of a top opening of the at least one groove is along the first direction;
• wherein at least one of the plurality of portions to be bent has one groove extending from one end of the carbon steel sheet material to another end of the carbon steel sheet material along the first direction;
• wherein at least one of the plurality of portions to be bent has a plurality of grooves arranged at intervals along the first direction;
• wherein a first ratio of a depth of at least one of the plurality of grooves arranged at intervals along the first direction to a thickness of the carbon steel sheet material between adjacent portions of the plurality of portions to be bent, is larger than a second ratio of a depth of the one groove extending from one end of the carbon steel sheet material to another end of the carbon steel sheet material along the first direction to a thickness of the carbon steel sheet material between adjacent portions of the plurality of portions to be bent.