CN219875555U

CN219875555U - Photovoltaic module

Info

Publication number: CN219875555U
Application number: CN202321576351.8U
Authority: CN
Inventors: 石刚; 付传国; 许成成; 李正立; 赵磊; 顾子奇
Original assignee: Canadian Solar Manufacturing Changshu Inc; Atlas Sunshine Power Group Co Ltd
Current assignee: Canadian Solar Inc; Canadian Solar Manufacturing Changshu Inc
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2023-10-20
Anticipated expiration: 2033-06-20

Abstract

A photovoltaic module comprising a laminate, a metal frame for mounting the laminate, a securing assembly for crimping and securing a lower panel of the metal frame to a support, the securing assembly comprising: a bar nut having a threaded hole, the bar nut being located on a side of the lower panel facing away from the bracket, and the area of the bar nut being greater than the area of a crimping region between the lower panel and the bracket; and the bolt penetrates through the bracket and the lower panel to be matched with the threaded hole. According to the photovoltaic module, the area of the strip-shaped nut is larger than that of the crimping area between the lower panel and the support, the thickness of the crimping area of the metal frame is increased, the strength of the crimping area is improved, the metal frame is helped to bear load pressure, and the metal frame is prevented from being torn in the fatigue test of the photovoltaic module.

Description

Photovoltaic module

Technical Field

The utility model relates to the field of photovoltaic installation, in particular to a photovoltaic module.

Background

In recent years, with the continuous development of photovoltaic technology, the productivity is gradually improved, and the cost reduction and synergy are enterprise lifelines. At present, an aluminum frame and a steel frame are generally adopted for assembly installation.

However, the common aluminum frame has insufficient strength and is easy to tear; if the strength is to be improved, the cost is greatly increased. If the same strength is required to be achieved, the steel frame can greatly reduce the cost compared with the aluminum frame; however, the steel frame has the advantages of high load performance, low cost, less carbon emission and the like, but is brittle, poor in ductility and easy to tear at the position of the bolt mounting hole.

In view of the foregoing, there is a need for an improved photovoltaic module that solves the above-described problems.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the prior art and provide a photovoltaic module.

In order to achieve one of the above purposes, the present utility model adopts the following technical scheme:

a photovoltaic module, comprising: the subassembly is fixed in the fixed subassembly that is used for installing the metal frame of laminate, is used for with the lower panel crimping of metal frame is fixed in on the support, the subassembly includes:

a bar nut having a threaded hole, the bar nut being located on a side of the lower panel facing away from the bracket, and the area of the bar nut being greater than the area of a crimping region between the lower panel and the bracket;

and the bolt penetrates through the bracket and the lower panel to be matched with the threaded hole.

Further, the length direction of the metal frame is consistent with the width direction of the bracket, and the length of the strip-shaped nut is larger than the width of the bracket.

Further, the distance of the strip-shaped nut exceeding the bracket along the length direction is not less than 0.5cm.

Further, the metal frame is the steel frame, the metal frame include the top panel, from the one end downwardly extending's of top panel, from the top panel is kept away from the well panel of one end horizontally extending of top panel, from the well panel is kept away from the lower side panel of the one end downwardly extending of top panel, from the lower side panel is kept away from the one end horizontally extending of well panel the lower panel, from the lower panel is kept away from the one end upwardly extending of lower side panel turns over the hem, the thickness of bar nut is not less than turn over the height of hem.

Further, a bending portion bending towards the side where the lower panel is located is arranged on the lower side plate, and the thickness of the strip-shaped nut is not larger than the distance from the bending portion to the lower panel.

Further, the metal frame is a steel frame and comprises an upper panel, an upper side plate, a middle panel, a lower side plate, a lower panel and a turning edge, wherein the upper side plate extends downwards from one end of the upper panel, the middle panel extends horizontally from one end of the upper side plate away from the upper panel, the lower side plate extends downwards from one end of the middle panel away from the upper panel, the lower panel extends horizontally from one end of the lower side plate away from the middle panel, and the turning edge extends upwards from one end of the lower panel away from the lower side plate;

the width of the strip-shaped nut is consistent with the width of the lower panel; or the strip-shaped nut is in clearance fit with a space surrounded by the turnover edge, the lower panel and the lower side plate.

Further, the threaded hole is centrally arranged in the length direction of the strip-shaped nut; and/or

The threaded hole is formed in the middle in the width direction of the strip-shaped nut; or, the distance between the threaded hole and the two edges in the width direction of the strip-shaped nut is different.

Further, the two long edges of the strip-shaped nut are arranged in a staggered mode along the length direction of the strip-shaped nut, the two short edges of the strip-shaped nut are arc-shaped edges, and the two arc-shaped edges are arranged in a central symmetry mode.

Further, a first mounting hole is formed in the lower panel, and the aperture of the first mounting hole is larger than the outer diameter of the bolt; the bracket is provided with a second mounting hole, and the aperture of the second mounting hole is consistent with the outer diameter of the bolt.

Further, the first mounting hole is a long strip hole extending along the length direction of the metal frame, and the distance between the threaded hole and the edge of any end of the strip nut in the length direction is greater than the length of the long strip hole.

The beneficial effects of the utility model are as follows: according to the photovoltaic module, the area of the strip-shaped nut is larger than that of the crimping area between the lower panel and the support, the thickness of the crimping area of the metal frame is increased, the strength of the crimping area is improved, the metal frame is helped to bear load pressure, and the metal frame is prevented from being torn in the fatigue test of the photovoltaic module.

Drawings

Fig. 1 is a schematic structural view of a photovoltaic module of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a schematic illustration of the securing assembly of FIG. 1 crimping and securing a metal bezel to a bracket;

FIG. 5 is a schematic view of FIG. 4 at another angle;

FIG. 6 is a schematic view of FIG. 4 at another angle

FIG. 7 is a schematic view of a fastening assembly formed by the cooperation of the bar nut, washer and screw of FIG. 1;

FIG. 8 is a schematic view of the strip nut of FIG. 1;

FIG. 9 is a schematic view of the structure of FIG. 8 at another angle;

fig. 10 is a schematic structural view of a bar nut in another embodiment.

The photovoltaic module comprises a 100-photovoltaic module, a 1-laminated piece, a 2-metal frame, a 21-upper panel, a 22-upper side plate, a 23-middle panel, a 24-lower side plate, a 25-lower panel, a 26-supporting part, a 27-flanging edge, a 28-bending part, a 20-first mounting hole, a 3-bracket, a 30-second mounting hole, a 4-fixing component, a 41-bar nut, a 42-bolt, a 43-gasket and a 40-threaded hole.

Detailed Description

The present utility model will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the utility model and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the utility model.

In the various drawings of the present utility model, certain dimensions of structures or portions may be exaggerated relative to other structures or portions for convenience of illustration and thus serve only to illustrate the basic structure of the subject matter of the present utility model.

Fig. 1 to 10 are schematic structural views of a photovoltaic module 100 according to a preferred embodiment of the utility model. The photovoltaic module 100 comprises a laminate 1, a metal frame 2 for mounting the laminate 1, and a fixing module 4 for crimping and fixing the metal frame 2 on a bracket 3.

The laminate 1 may be any of those known in the art or available in the market, and will not be described in detail herein. The bracket 3 is any structure for fixedly mounting the metal frame 2, and may also be called a cross beam, a bottom beam, and a keel.

The metal frame 2 is wrapped around the laminate 1, protects the edge of the laminate 1, and is used for fixing the laminate 1.

Specifically, the length of the metal bezel 2 is set according to the side length of the laminate 1, and the metal bezel 2 includes, in a cross section thereof, an upper panel 21, an upper side panel 22 extending downward from one end of the upper panel 21, a middle panel 23 extending horizontally from one end of the upper side panel 22 away from the upper panel 21, a lower side panel 24 extending downward from one end of the middle panel 23 away from the upper panel, and a lower panel 25 extending horizontally from one end of the lower side panel 24 away from the middle panel 23; the upper panel 21, the upper side plate 22, the middle panel 23, the lower side plate 24, and the lower panel 25 extend along the longitudinal direction of the metal frame 2.

The upper panel 21, the upper side plate 22 and the middle panel 23 enclose an upper mounting cavity for accommodating the edge of the laminate 1. Further, the metal frame 2 further includes a supporting portion 26 extending downward from an end of the upper panel away from the upper side plate 22, the supporting portion 26 can improve strength of the upper panel, and the supporting portion 26 supports against an upper surface of the laminate 1 to limit and fix the upper panel, so that adhesive in the upper mounting cavity can be prevented from overflowing to a front surface of the laminate 1.

The middle panel 23, the lower side panel 24, and the lower panel 25 enclose a lower mounting cavity, and may receive a portion of the fixing assembly 4. Further, the metal frame 2 further includes a turnover edge 27 extending upwards from one end of the lower panel 25 away from the lower side plate 24, and the turnover edge 27 makes the edge of the bottom plate smooth, so that unnecessary damage to workers can be avoided, meanwhile, the strength of the lower panel 25 can be improved, and the fixing assembly 4 can also play roles in limiting, protecting and shielding.

In addition, the lower side plate 24 is provided with a bending portion 28 bending toward the side of the lower panel 25, so as to improve the strength and load capacity of the lower side plate 24, improve the deformation buffering performance when being pressed, and simultaneously facilitate the carrying and the installation. Preferably, the bent portion 28 is centrally disposed in the height direction of the lower side plate 24.

The fixing component 4 is used for pressing and fixing the lower panel 2 on the bracket 3. Specifically, the lower panel 25 is provided with a first mounting hole 20, the bracket 3 is provided with a second mounting hole 30, the fixing component 4 comprises a bar nut 41 and a bolt 42, the bar nut 41 is located on one side of the lower panel 25 away from the bracket 3, that is, the bar nut 41 is located above the lower panel 25, and the bolt 42 sequentially penetrates through the second mounting hole 30 and the first mounting hole 20 from bottom to top and then is locked with a threaded hole 40 of the bar nut 41, so that the bracket 3 and the metal frame 2 are in compression joint and fixed together.

Preferably, the aperture of the second mounting hole 30 is consistent with or matched with the bolt 42, so as to prevent the bolt 42 from shaking on the bracket 3. The aperture of the first mounting hole 20 is larger than the outer diameter of the bolt 42, so that the alignment range of the bracket 3 and the metal frame 2 is enlarged; and the bolts 42 do not contact with the peripheral wall of the first mounting hole 20, so as to avoid damage caused by force application during the mounting process.

In a specific embodiment, the first mounting hole 20 is a long hole extending along the length direction of the metal frame 2, the distance between the threaded hole 40 and the edge of any end of the long nut 41 in the length direction is greater than the length of the long hole, and no matter where the bolt 42 is located in the long hole, the long nut 41 can cover the area around the long hole, so as to improve the tear resistance of the metal frame 2.

The area of the strip nut 41 is larger than the area of the crimping area between the lower panel 25 and the bracket 3, that is, the area of the strip nut 41 is larger than the overlapping area of the metal frame 2 and the bracket 3 when in crimping, which is equivalent to increasing the thickness of the crimping area of the metal frame 2, improving the strength of the crimping area, helping the metal frame 2 bear load pressure, and avoiding the metal frame 2 from being torn in the fatigue test of the photovoltaic module 100.

Specifically, the length of the bar nut 41 is greater than the width of the bracket 3. Preferably, in an embodiment in which the bracket 3 is perpendicular to the metal frame 2, that is, when the length direction of the metal frame 2 coincides with the width direction of the bracket 3, the distance of the bar nut 41 beyond the bracket 3 along the length thereof is not less than 0.5cm. In one embodiment, the length of the bar nut 41 is not less than 5cm, and the width of the bracket 3 is not less than 4cm.

The thickness of the strip nut 41 is not less than the height of the turnup edge 27; and the larger the thickness is, the more the tearing resistance of the metal frame 2 can be improved. When the thickness of the bar nut 41 is consistent with the height of the turnup edge 27, the turnup edge 27 completely shields the bar nut 41, and the appearance is neat.

Preferably, the thickness of the strip nut 41 is greater than the height of the turnup edge 27, so as to greatly improve the fatigue resistance of the metal frame 2 and reduce the risk of fatigue failure. In one embodiment, the thickness of the strip nut 41 is not less than 3mm.

Further, the thickness of the bar nut 41 is not greater than the distance from the bending portion 28 to the lower panel 25, preferably the top of the bar nut 41 is flush with the lower edge of the bending portion 28, and the bar nut 41 is limited between the bending portion 28 and the lower panel 25, so that the assembly and positioning are facilitated.

The width of the bar nut 41 is consistent with the width of the lower panel 25; or, the strip nut 41 is in clearance fit with a space surrounded by the turnup edge 27, the lower panel 25 and the lower side plate 24. From the width direction of the metal frame 2, the strip-shaped nut 41 is limited by the turnup edge 27 and the lower side plate 24, so that the strip-shaped nut 41 is prevented from shaking in the metal frame 2, the strip-shaped nut and the metal frame 2 form a whole, after the bolt 42 is locked, the overlapping area is basically unchanged, and the fatigue resistance and tearing resistance of the metal frame 2 are further improved.

In one embodiment, the threaded hole 40 is centrally disposed in the width direction of the bar nut 41, and the strength of the area outside the threaded hole 40 is balanced. In another embodiment, the threaded holes 40 are different in distance from both edges in the width direction of the bar nut 4, that is, the threaded holes 40 are disposed at a position offset to one edge in the width direction of the bar nut 41, so that the bolts 42 are prevented from interfering with the bent portions 28.

The threaded hole 40 is centrally arranged in the length direction of the bar nut 41, and the lengths/areas of the two sides covering the metal frame 2 are the same.

In addition, the corners of the bar nut 41 are arc angles, so that the workers are prevented from being scratched. In this embodiment, the two long edges of the bar nut 41 are staggered along the length direction thereof, the two short edges of the bar nut 41 are arc edges, and the arc edges on two sides are arranged in a central symmetry manner, so that the worker can conveniently grasp and install the bar nut.

Further, the fixing assembly 4 further includes a spacer 43, and the spacer 43 is located at a side of the bracket 3 away from the metal frame 2, so that a contact area between an end of the bolt 42 and the bracket 3 is enlarged, and the bracket 3 is prevented from being crushed.

The fatigue resistance test is a common test means in the industry, and in the direction perpendicular to the laminated board, an upward suction force is provided for the laminated board from above, and a downward pressure is provided for one test cycle, and after a plurality of test cycles, the assembly is qualified without damage. Compared with the traditional elastic pressing block mounting mode, the area of the strip-shaped nut 41 is large, the area of the area overlapped with the bracket 3 and the bottom plate 25 is large, the area around the threaded hole 40 is not deformed and is not easy to tear, and the fatigue resistance of the metal frame is greatly improved.

In summary, in the photovoltaic module 100 of the present utility model, the area of the bar nut 41 is larger than the area of the press-connection area between the lower panel 25 and the bracket 3, which is equivalent to increasing the thickness of the press-connection area of the metal frame 2, improving the strength of the press-connection area, helping the metal frame 2 bear the load pressure, and avoiding the metal frame 2 from being torn in the fatigue test of the photovoltaic module 100.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. A photovoltaic module, comprising: the utility model provides a laminate, is used for installing the metal frame of laminate, is used for with the lower panel crimping of metal frame is fixed in the fixed subassembly on the support, its characterized in that, fixed subassembly includes:

2. The photovoltaic module of claim 1, wherein: the length direction of the metal frame is consistent with the width direction of the bracket, and the length of the strip-shaped nut is larger than the width of the bracket.

3. The photovoltaic module according to claim 1 or 2, characterized in that: the distance of the strip-shaped nut exceeding the bracket along the length direction is not less than 0.5cm.

4. The photovoltaic module of claim 1, wherein: the metal frame is the steel frame, the metal frame include the top panel, from the one end downwardly extending's of top panel, from the top panel is kept away from the well panel of one end horizontally extending of top panel, from the well panel is kept away from the lower side panel of the one end downwardly extending of top panel, from the lower side panel is kept away from the one end horizontally extending of well panel the lower panel, from the lower panel is kept away from the one end upwardly extending of lower side panel turns over the limit, the thickness of bar nut is not less than turn over the height of limit.

5. The photovoltaic module of claim 4, wherein: the lower side plate is provided with a bending part bending towards the side where the lower panel is located, and the thickness of the strip-shaped nut is not greater than the distance from the bending part to the lower panel.

6. The photovoltaic module of claim 1, wherein: the metal frame is a steel frame and comprises an upper panel, an upper side plate, a middle panel, a lower side plate, a lower panel and a turning edge, wherein the upper side plate extends downwards from one end of the upper panel;

7. The photovoltaic module of claim 1, wherein: the threaded hole is formed in the middle in the length direction of the strip-shaped nut; and/or

8. The photovoltaic module of claim 1, wherein: the two long edges of the strip-shaped nut are arranged in a staggered mode along the length direction of the strip-shaped nut, the two short edges of the strip-shaped nut are arc-shaped edges, and the two arc-shaped edges are arranged in a central symmetry mode.

9. The photovoltaic module of claim 1, wherein: the lower panel is provided with a first mounting hole, and the aperture of the first mounting hole is larger than the outer diameter of the bolt; the bracket is provided with a second mounting hole, and the aperture of the second mounting hole is consistent with the outer diameter of the bolt.

10. The photovoltaic module of claim 9, wherein: the first mounting hole is a strip hole extending along the length direction of the metal frame, and the distance between the thread hole and the edge of any end of the strip nut in the length direction is greater than the length of the strip hole.