Photovoltaic module with support frame.

Abstract

A photovoltaic module with a support frame comprising a photovoltaic panel framed in a support frame, characterized in that the support frame (1) is assembled of four trims, including trims C (2) and at least one trim L (3) with substantially congruent profiles, wherein the trims C (2) are mounted on at least two opposite side edges (41) of the photovoltaic panel (4) and the trim L (3) is mounted on at least the bottom edge (43) of the photovoltaic panel (4), wherein the trim C (2) in the upper part of the profile has a C-shaped channel (21) covering the side edge (41), and the trim L (3) in the upper part of the profile has an L-shaped protrusion (31) supporting the photovoltaic panel (4) below its top surface (44).

Description

[0001]

[0002] Photovoltaic module with support frame.

[0003] The object of the solution is a photovoltaic module with a support frame. The disclosed solution relates to a support frame structure of a photovoltaic module for mounting a photovoltaic panel on support structures and is especially designed for double-sided photovoltaic panels.

[0004] Photovoltaic modules containing a frame, usually made of aluminum profiles, are well known. These frames are primarily used for mounting photovoltaic panels on supporting structures. Most often, the frames are drilled and connected to the structure with screw connections. The frame also has a protective function, as the side edges of the panels are particularly vulnerable to impacts during transport, which can cause the glass body to break.

[0005] Familiar from the state of the art are frames made of metal profiles of varying shapes.

[0006] Utility model CN210490786U discloses a solution for a protective frame for photovoltaic panels, made of metal profiles. The profile has a recess for the edge of the photovoltaic panel, the recess having a horizontal and parallel upper flange and a bottom plate above and below respectively, the upper flange having an upwardly curved edge towards the recess opening, the upwardly curved edge reducing the width of the recess opening from inside to outside.

[0007] Chinese patent application CN106253828 shows a solution for a metal profile that is a component of a photovoltaic panel frame. The profile includes a rectangular recess for the edge of the photovoltaic panel and a base extending below the recess, the lower wall of which is substantially wider than the recess and extends below the photovoltaic panel.

[0008] The standard frame design includes a channel into which the panel is inserted. This design means that the top edge of the channel protrudes above the top surface of the panel. As a result, dirt is retained on this edge, remaining in the panel area. Particularly in the case of sand, the panel loses its self-cleaning ability. This contributes to limiting the access of light to the top surface of the panel. In addition, a common disadvantage of known frame solutions is their large size due to the way in which the frame is connected to the support structure of the photovoltaic module, which in turn contributes to a significant restriction of light access to the undersurface of the panel, especially in the area of the extremes of the photovoltaic cells. The photovoltaic cells are connected in series and therefore shading of the extreme cells of the bottom surface of the photovoltaic panel adversely affects the efficiency of the entire bottom surface of the photovoltaic panel.

[0009] The aim of the solution is therefore to provide a photovoltaic panel module with a support frame, the design of which will not restrict the self-cleaning process of the top surface of the panel, as well as having a negligible impact on the shading of the underside of the panel.

[0010] According to the invention, a photovoltaic module with a support frame comprising a photovoltaic panel framed in a support frame characterized in that the support frame is assembled of four trims, including trims C and at least one trim L with substantially congruent profiles. The trims C are mounted on at least two opposite side edges of the photovoltaic panel and the trim L is mounted on at least the bottom edge of the photovoltaic panel. The trim C in the upper part of the profile has a C-shaped channel covering the side edge, and the trim L in the upper part of the profile has an L-shaped protrusion supporting the photovoltaic panel below its top surface. In addition, the bottom edge of the photovoltaic panel is the edge closest to the ground in the operating position, the top edge is opposite it and the side edges extend between them. By using a trim L supporting the bottom edge of the panel below its top surface rather than encompassing it, the panel retains its self-cleaning feature. Dirt does not settle on the underside of the module's support frame. As a result, the top surface of the photovoltaic module remains clean and more of the sun's rays are absorbed by the photovoltaic cells.

[0011] Preferably, the trim C and the trim L are bonded to the photovoltaic panel with an adhesive means. The adhesive agent, which can be mounting foam or mounting glue, ensures that the panel adheres to the trims, which is particularly advantageous in the case of the L-trims, which are not form-fitted to the panel.

[0012] Preferably, the trim C and the trim L are bonded with the adhesive means in the area of the facing ends, which are bevelled at 45 degrees respectively towards the inner side of the support frame.

[0013] Preferably, the trims C and the trims L in the profile area contain a chamber into which an angle is inserted in the comer area of the support frame. The angle ensures a fit joint between the frame elements, which increases the strength of the frame.

[0014] Preferably, the trim C contains mounting holes horizontal to its base. This reduces the width of the trim, increasing light access to the underside of the panel.

[0015] Preferably, the trim C contains mounting holes in a base.

[0016] The subject of the solution is illustrated with examples that do not limit its scope. The solution is illustrated in the figures:

[0017] • fig. 1. - the photovoltaic module with a section revealing details of the cross-sections of the trim C and the trim L.

[0018] • fig. 2. - the photovoltaic module with marked cross-sectional plane "A-A" and cross-sectional plane "B-B"

[0019] • fig. 3. - detail of fixing the photovoltaic module on the support in the "A- A" section plane

[0020] • fig. 4. - the trim C profile

[0021] • fig. 5. - detail of photovoltaic panel mounting in L-profile shown in crosssection "B-B"

[0022] • fig. 6. - the trim L profile

[0023] • fig. 7. - the trim C with mounted angles in the bottom view with a section showing the cross-section with the angles.

[0024] In the example solution disclosed in fig. 1 the photovoltaic module with support frame comprises a photovoltaic panel 4 framed in a support frame 1. The support frame 1 is assembled of four trims, including two trims C 2 and two trims L 3 with substantially congruent profiles. The trims C 2 are mounted on two opposite side edges 41 of the photovoltaic panel 4, as shown in detail in cross-section A-A in fig.

[0025] 3 (cross-section A-A as shown in fig.2). The trims C 2 are assembled to the support structure of the photovoltaic modules in the way illustrated in fig.3, where the trim C is supported by the support 6, is bolted to it by means of a screw 7 and a nut 8 through the mounting holes 23 horizontal to its base 24. The trim C 2 in the upper part of the profile has a C-shaped channel 21 covering the side edge 41. The trim L

[0026] 3 is mounted on the bottom edge 43 and the top edge 42 of the photovoltaic panel 4, as shown in detail in section B-B in fig. 5 (cross-section B according to fig.2). The trims L 3 mounted at the top of the profile has an L-shaped protrusion 31 supporting the photovoltaic panel 4 below its top surface 44. The bottom edge 43 is the closest ground edge of the photovoltaic panel 4 in the operating position, the top edge 42 is opposite to it and the side edges 42 extend between them. The trim C 2 and the trim L 3 are bonded to the photovoltaic panel 4 by an adhesive means. Furthermore, they are connected to each other by the adhesive means in the area of the facing ends, which ends are bevelled at an angle of 45 degrees respectively towards the inner side of the support frame 1.

[0027] In another example of a solution, the support frame 1 consists of three trims C

[0028] 2 mounted on the side edges 41 and the top edge 42 and the trim L 3 mounted on the bottom edge 43.

[0029] The trim C 2 in another variant of the solution shown in fig. 4 may also have an elongated base 24 in which mounting holes 23 are provided for bolting the photovoltaic module to the support structure.

[0030] In fig. 7 shows another variant of the solution, in which the trim C 2 and the L

[0031] 3 trim contain a chamber 22 into which an angle 5 is inserted in the comer area of the support frame 1 to reinforce the connection between the profiles.

[0032] SUBSTITUTE SHEET (RULE 26)

Claims

Claims.

1. A photovoltaic module with a support frame comprising a photovoltaic panel framed in a support frame, characterized in that the support frame (1) is assembled of four trims, including trims C (2) and at least one trim L (3 ) with substantially congruent profiles, wherein the trims C (2) are mounted on at least two opposite side edges (41) of the photovoltaic panel (4) and the trim L (3) is mounted on at least the bottom edge (43) of the photovoltaic panel (4), wherein the trim C (2) in the upper part of the profile has a C-shaped channel (21) covering the side edge (41), and the trim L (3) in the upper part of the profile has an L-shaped protrusion (31) supporting the photovoltaic panel (4) below its top surface (44), where the bottom edge (43) of the photovoltaic panel (4) is the edge closest to the ground in the operating position, the top edge (42) is opposite to it, and the side edges (42) extend between them.

2. The photovoltaic module according to claim 1 characterized in that the support frame (1) comprises two trims C (2) mounted on the side edges (41) and two trims L (3) mounted on the top edge (42) and the bottom edge (43).

3. The photovoltaic module according to claim 1 characterized in that the support frame (1) comprises three trims C (2) mounted on the side edges (41) and top edge (42) and a trim L (3) mounted on the bottom edge (43).

4. The photovoltaic module according to claim 1 or 2 or 3 characterized in that the trims C (2) and trims L (3) are bonded to the photovoltaic panel (4) with an adhesive means.

5. The photovoltaic module according to claim 1 or 2 or 4 characterized in that the trim C (2) and the trim L (3) are bonded with the adhesive means in the area of the facing ends, which are bevelled at 45 degrees respectively towards the inner side of the support frame (1). . The photovoltaic module according to claim 1 or 2 or 3 or 4 or 5 characterized in that the trims C (2) and the trims L (3) contain a chamber (22) into which an angle (5) is inserted in the comer area of the support frame (1).The photovoltaic module according to claim 1 or 2 or 3 or 4 or 5 or 6 characterized in that the trim C (2) contains mounting holes (23) horizontal to its base (21). The photovoltaic module according to claim 1 or 2 or 3 or 4 or 5 or 6 characterized in that the trim C (2) contains mounting holes (23) in a base

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