Stacking spacer, photovoltaic module frame and tracking device assembly

A photovoltaic module frame, comprising:

• at least two opposed side walls;
• wherein each side wall of the at least two opposed side walls is provided with at least one groove extending in a longitudinal direction of the side wall and facing outwards from the photovoltaic module frame;
• and
• wherein each side wall of the two opposed side walls is further provided with at least one protrusion, extending in the longitudinal direction of the side wall and such that, in a cross-section of the side wall taken perpendicularly to the longitudinal direction, the at least one protrusion protrudes from an end of the side wall perpendicularly to the longitudinal direction;
• and
• at least one spacing element, comprising:
• a main body extending in a longitudinal direction;
• a connecting member extending in the longitudinal direction and protruding from the main body, the connecting member inserted in the at least one groove of the photovoltaic module frame;
• and
• two opposed support members on respective opposed longitudinal sides of the main body, the two opposed support members extending in the longitudinal direction, the two opposed support members having complementary forms, whereby at least two stacking spacers can be securely stacked on top of one another, and wherein a support member of the two opposed support members defines a protrusion with respect to the main body and the other support member of the two opposed support members defines a recess with respect to the main body;
• wherein the main body comprises a first main face forming a substantially form-fitting profile for a side wall of the at least two opposed side walls of the photovoltaic module frame, and wherein the connecting member protrudes from the first main face;
• and
• wherein the connecting member is at least partially form-fitted with the at least one groove of the photovoltaic module frame and has a Y-shaped section;
• and
• wherein the main body further comprises:
• a second main face opposed to the first main face;
• at least one through bore extending through the at least one spacing element from a longitudinal end of the at least one spacing element to another, opposite longitudinal end of the at least one spacing element, between the first main face and the second main face of the main body, wherein the at least one through bore is adapted for partially receiving therein a mounting bracket of a tracking device assembly;
• and
• at least one additional through bore extending through the connecting member and adapted for receiving fixing means therein, whereby the at least two stacking spacers can be securely fixed to the photovoltaic module frame.