CN218301278U

CN218301278U - Photovoltaic module's fastener and photovoltaic system

Info

Publication number: CN218301278U
Application number: CN202222857057.6U
Authority: CN
Inventors: 孙华文; 程强; 张荣敏; 张兵
Original assignee: Jiangsu Tianhe Smart Distributed Energy Co ltd
Current assignee: Tianhe Fujia Energy Co.,Ltd.
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-01-13
Anticipated expiration: 2032-10-28

Abstract

The embodiment of the application provides a fastening device of a photovoltaic module and a photovoltaic system. The fastening device includes: the fixing device comprises a fixing bracket, a clamping piece, a pressing block and a connecting piece; two side walls of the fixed support are bent inwards to form horizontal parts, the horizontal parts are bent inwards again to form bent parts, and a preset included angle is formed between the bent parts and the horizontal parts; the two ends of the clamping piece are bent to form clamping parts, a preset included angle is formed between each clamping part and the surface of the clamping piece, each clamping part is positioned between the side wall and the corresponding bent part and is attached to the corresponding bent part, and the preset included angle is smaller than 90 degrees; the connecting piece passes the briquetting and is connected with the card firmware, and the briquetting is used for compressing tightly photovoltaic module on the horizontal part. The embodiment of the application realizes that the clamping connection between the fixed support and the clamping piece can be effectively strengthened to ensure that the clamping piece cannot be popped out under the action of wind power, thereby greatly improving the connection stability of the photovoltaic module and the fixed support and further preventing the photovoltaic module from being damaged and causing economic loss.

Description

Photovoltaic module's fastener and photovoltaic system

Technical Field

The application relates to the technical field of photovoltaic manufacturing, in particular to a fastening device of a photovoltaic module and a photovoltaic system.

Background

At present, in order to reduce the bracket cost ratio of a photovoltaic module, each photovoltaic company generally only considers the overall strength and the deformability of the bracket in the scheme of reducing the bracket cost, and does not pay attention to the installation nodes, so that a series of quality safety accidents are brought. According to investigation, the phenomenon that the photovoltaic module is blown away by wind is the most caused by the fact that the photovoltaic module is not installed in place or the design of a connecting node of the photovoltaic module and the support is problematic.

The photovoltaic module fixing device is used for solving the problem that the fixing safety of a photovoltaic module is required to be urgently solved on the premise that the wall thickness of an existing support is reduced.

SUMMERY OF THE UTILITY MODEL

This application provides a fastener and photovoltaic system of photovoltaic module to the shortcoming of current mode for there is the fixed technical problem who loses efficacy of photovoltaic module in the solution prior art.

In a first aspect, the present application provides a fastening device for a photovoltaic module, including: the fixing device comprises a fixing bracket, a clamping piece, a pressing block and a connecting piece; two side walls of the fixed support are bent inwards to form horizontal parts, the horizontal parts are bent inwards again to form bent parts, and a preset included angle is formed between the bent parts and the horizontal parts; two ends of the clamping piece are bent to form clamping parts, a preset included angle is formed between each clamping part and the surface of the clamping piece, each clamping part is located between the side wall and the corresponding bent part and is attached to the corresponding bent part, and the preset included angle is smaller than 90 degrees; the connecting piece penetrates through the pressing block to be connected with the clamping piece, and the pressing block is used for pressing the photovoltaic module on the horizontal part.

In an embodiment of the present application, the predetermined included angle is less than or equal to 89 degrees and greater than or equal to 80 degrees.

In an embodiment of the present application, the predetermined included angle is 83 degrees.

In an embodiment of the present application, the fastening portion and the bending portion are in an interference fit.

In an embodiment of the present application, two side walls of the fixing bracket are respectively provided with an inwardly recessed reinforcing rib, and the fastening member is limited at the top of the reinforcing rib.

In an embodiment of the present application, the reinforcing rib is disposed along an axial direction of the fixing bracket.

In an embodiment of the application, a friction portion is further formed on the fastening member, and the friction portion is in contact with the bottom end of the bending portion and is used for increasing a friction force between the fastening member and the bending portion.

In an embodiment of the present application, the friction portion is a stamping groove formed on an inner side wall of the clamping portion, and the stamping groove is formed on a surface of the clamping member.

In an embodiment of the present application, the cross-sectional shapes of the fixing bracket and the clamping member are both U-shaped structures, and the clamping member adopts a corner cut design, so that the clamping member can rotate in the fixing bracket.

In an embodiment of the present application, the fixing bracket, the fastening member and the connecting member are made of a material selected from the group consisting of hot-dip galvanized steel, zinc-aluminum-magnesium steel and stainless steel.

In a second aspect, embodiments of the present application provide a photovoltaic system, including a photovoltaic module and a fastening device of the photovoltaic module as provided in the first aspect.

The technical scheme provided by the embodiment of the application has the following beneficial technical effects:

this application embodiment is through forming between the flexion with fixed bolster and the horizontal part and predetermine the contained angle to and form between the surface of card-tight part and card-tight piece and predetermine the contained angle, and the messenger predetermines the contained angle and sets up to being less than 90 degrees, makes the card-tight part block between flexion and lateral wall, and the rethread connecting piece passes the briquetting and is connected with card-tight piece, has realized the fastening connection to photovoltaic module. By adopting the design, the clamping connection between the fixed support and the clamping piece can be effectively enhanced, so that the clamping piece is prevented from popping up under the action of wind power, the connection stability of the photovoltaic module and the fixed support is greatly improved, and the photovoltaic module is prevented from being damaged to cause economic loss.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic cross-sectional view illustrating a fastening device engaged with a photovoltaic module according to an embodiment of the present disclosure;

fig. 2 is a schematic perspective view illustrating a fixing bracket and a clamping member according to an embodiment of the present disclosure;

FIG. 3 is a side view of a mounting bracket according to an embodiment of the present disclosure;

FIG. 4 is a schematic side view of a card fastener according to an embodiment of the present disclosure;

FIG. 5 is a schematic top view of a card fastener according to an embodiment of the present disclosure;

fig. 6A is a schematic side view illustrating an installation process of a fixing bracket and a clamping member according to an embodiment of the present disclosure;

fig. 6B is a schematic side view illustrating the fixing bracket and the clamping member according to an embodiment of the disclosure.

Detailed Description

Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is unnecessary for the features of the present application shown, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.

The embodiment of the present application provides a fastening device of a photovoltaic module 100, the structural schematic diagram of the fastening device is shown in fig. 1 to 4, and the fastening device includes: the fixing device comprises a fixing support 1, a clamping piece 2, a pressing block 3 and a connecting piece 4; two side walls 11 of the fixed bracket 1 are bent inwards to form a horizontal part 12, the horizontal part 12 is bent inwards again to form a bent part 13, and a preset included angle is formed between the bent part 13 and the horizontal part 12; two ends of the clamping piece 2 are bent to form clamping parts 21, a preset included angle is formed between the clamping parts 21 and the surface of the clamping piece 2, the clamping parts 21 are located between the side wall 11 and the bending part 13 and are attached to the bending part 13, and the preset included angle is smaller than 90 degrees; the connecting piece 4 penetrates through the pressing block 3 to be connected with the clamping piece 2, and the pressing block 3 is used for pressing the photovoltaic module 100 on the horizontal portion 12.

As shown in fig. 1 to 4, the fixing bracket 1 may be a steel structure with a U-shaped cross section, but the embodiment of the present application is not limited thereto, and a person skilled in the art may adjust the setting according to actual situations. Two opposite side walls 11 of the fixing bracket 1 are bent inward to form a horizontal portion 12, an end portion of the horizontal portion 12 is bent inward again to form a bent portion 13, and a predetermined included angle may be formed between the bent portion 13 and the horizontal portion 12. The clamping member 2 may be a rectangular plate-shaped structure, two ends of the clamping member 2 are bent upward to form a clamping portion 21, and a preset included angle is formed between the clamping portion 21 and the upper surface of the clamping member 2. The card firmware 2 can be by the one end of fixed bolster 1 in the fixed bolster 1 slides in to two card-tight parts 21 are located between both sides wall 11 and two flexion 13 respectively, card-tight part 21 is located between lateral wall 11 and the flexion 13 promptly, and set up with the laminating of flexion 13, because card-tight part 21 sets up with the laminating of flexion 13, consequently the contained angle of predetermineeing between them all sets up to being less than 90 degrees, in order to prevent to lead to the fact card-tight part 21 to deviate from because flexion 13 warp, thereby improve the stability of being connected of card firmware 2 and fixed bolster 1 by a wide margin. The connecting piece 4 can adopt a bolt structure, the pressing block 3 can adopt a rectangular block structure, the photovoltaic module 100 is overlapped above the horizontal part 12, and the connecting piece 4 can penetrate through the pressing block 3 to be connected with the clamping piece 2, so that the pressing block 3 can press the photovoltaic module 100 on the horizontal part 12.

In an embodiment of the present application, as shown in fig. 1 to 4, the predetermined included angle is less than or equal to 89 degrees and greater than or equal to 80 degrees. Specifically, the preset included angle may be set to any value between 80 degrees and 89 degrees, so the embodiment of the present application is not limited thereto, and a person skilled in the art may adjust the setting according to actual situations. The smaller the degree of the preset angle is, the higher the stability between the clamping piece 2 and the fixing support 1 is, so that the photovoltaic module 100 is suitable for a large weight, or a large area of wind power is generated, and therefore the applicability and the application range of the embodiment of the application can be greatly improved by adopting the design.

In an embodiment of the present application, as shown in fig. 1 to 4, the predetermined included angle may be set to 83 degrees. The included angle design of predetermineeing is 83 degrees, can be so that the stability of being connected of card firmware 2 and fixed bolster 1 is higher, the installation between card firmware 2 and the fixed bolster 1 of not only being convenient for, can prevent both to drop moreover to be applicable to the great photovoltaic module 100 of weight, perhaps wind-force is great regional, thereby further improve the security of this application embodiment.

In an embodiment of the present application, as shown in fig. 1 to 6B, the fastening portion 21 and the bending portion 13 are in an interference fit. Specifically, one end of the fastening member 2 is first installed between the bending portion 13 and the side wall 11, and then the other end is fastened between the bending portion 13 and the side wall 11, specifically, as shown in fig. 6A and 6B, so that the fastening portion 21 is in interference fit with the bending portion 13. However, the embodiment of the present application is not limited to this, and for example, the entirety of the fastening member 2 may be installed in the fixing bracket 1 from one end of the fixing bracket 1, and the fastening portion 21 and the bending portion 13 are in interference fit. Adopt above-mentioned design, can avoid adopting the not in place problem of moulding wing nut installation among the prior art to can not only improve the stability of this application embodiment, but also can be convenient for the dismouting in order to improve work efficiency, and can also reduce application cost.

In an embodiment of the present application, as shown in fig. 1 to fig. 6B, both side walls 11 of the fixing bracket 1 have concave reinforcing ribs 14, and the fastening member 2 is limited on top of the reinforcing ribs 14. Alternatively, the reinforcing ribs 14 are provided extending in the axial direction of the fixing bracket 1. Particularly, the lateral wall 11 of the fixed bolster 1 can adopt the punching press mode to be formed with the strengthening rib 14 of indent, all sets up the same strengthening rib 14 on two lateral walls 11 to the strengthening rib 14 can be along the recess that the axial extension of fixed bolster 1 set up, with form the arch in two lateral walls 11 inboards, set up the intensity that strengthening rib 14 can effectively improve fixed bolster 1, thereby further improve the stability of this application embodiment. Further, because the reinforcing rib 14 is protruding on the side wall 11, two reinforcing ribs 14 can cooperate with the spacing card firmware 2, so that the card firmware 2 can be limited at the top of the reinforcing rib 14, and the pressing block 3 and the connecting piece 4 are convenient to install in practical application, so as to prevent the card firmware 2 from falling into the bottom of the fixing support 1, thereby improving the dismounting and maintenance efficiency of the embodiment of the application. In addition, because a plastic flange is not required to be arranged on the clamping piece 2, the application and maintenance cost can be greatly reduced.

In an embodiment of the present application, as shown in fig. 1 to fig. 6B, a friction portion 22 is further formed on the fastening member 2, and the friction portion 22 contacts with the bottom end of the curved portion 13 for increasing the friction force between the fastening member 2 and the curved portion 13. Alternatively, the friction part 22 is a punched groove formed on the inner side wall 11 of the chucking part 21, and a punched friction groove formed on the surface of the chucking member 2. Specifically, the friction portion 22 may be located on the inner side wall 11 of the fastening portion 21 and formed on the upper surface of the fastening member 2, for example, one or more grooves are formed on the surface of the fastening member 2 by stamping, and then the fastening member 2 is bent to form the friction portion 22. The embodiment of the present application does not limit the forming manner of the friction portion 22, and those skilled in the art can adjust the setting according to actual conditions. Furthermore, the friction portion 22 partially fits the inner side of the bending portion 13 and partially fits the bottom end of the bending portion 13 to improve the friction force between the engaging member 2 and the bending portion 13, thereby further improving the engaging stability of the two. In an embodiment of the present application, a friction portion may also be disposed on the inner side of the bending portion 13 to further improve the friction force between the fastening member 2 and the bending portion 13, so as to further improve the fastening stability of the fastening member and the bending portion, and further improve the stability and safety of the photovoltaic module 100.

In an embodiment of the present application, as shown in fig. 1 to 6B, the cross-sectional shapes of the fixing bracket 1 and the fastening member 2 are both U-shaped structures, and the fastening member 2 adopts a corner cut design, so that the fastening member 2 can rotate in the fixing bracket 1. Optionally, the fixing bracket 1, the fastening member 2 and the connecting member 4 are made of hot-dip galvanized steel, zinc-aluminum-magnesium steel or stainless steel. Specifically, the fixing bracket 1 may have a U-shaped cross section, and the top ends of the two side walls 11 are bent twice to form the horizontal portion 12 and the bent portion 13. By adopting the design, the application and maintenance cost of the embodiment of the application can be greatly reduced, and the applicability and the application range can be greatly improved. The clamping part 21 is formed after the two ends of the clamping piece 2 are bent, namely, the whole section shape of the clamping piece 2 is also of a U-shaped structure so as to be matched with the shape of the bending part 13, so that the application is simple in implementation structure and easy to realize, and the connection stability can be improved. Further, two opposite corners of the fastening member 2 may be designed as rounded corners, which can realize that the fastening member 2 rotates in the fixing bracket 1, thereby facilitating the disassembly and assembly, and specifically refer to fig. 5. However, the embodiments of the present application are not limited thereto, and those skilled in the art can adjust the settings according to the actual situation. In addition, the fixing support 1, the clamping piece 2 and the connecting piece 4 are all made of hot galvanizing materials, zinc-aluminum-magnesium materials or stainless steel materials, so that the application cost of the photovoltaic module can be reduced, the strength of the embodiment of the application can be effectively improved, and the stability of the photovoltaic module installation is further improved.

Based on the same concept, the embodiment of the application provides a photovoltaic system, which comprises a photovoltaic module and a fastening device of the photovoltaic module, wherein the fastening device of the photovoltaic module is provided by the above embodiments.

By applying the embodiment of the application, at least the following beneficial effects can be realized:

It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and scope of the invention, and such modifications and improvements are also considered to be within the scope of the invention.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims

1. A fastening device for a photovoltaic module, comprising: the fixing device comprises a fixing bracket, a clamping piece, a pressing block and a connecting piece;

two side walls of the fixed support are bent inwards to form horizontal parts, the horizontal parts are bent inwards again to form bent parts, and a preset included angle is formed between the bent parts and the horizontal parts;

two ends of the clamping piece are bent to form clamping parts, a preset included angle is formed between each clamping part and the surface of the clamping piece, each clamping part is located between the side wall and the corresponding bent part and is attached to the corresponding bent part, and the preset included angle is smaller than 90 degrees;

the connecting piece penetrates through the pressing block to be connected with the clamping piece, and the pressing block is used for pressing the photovoltaic module on the horizontal part.

2. The fastener of claim 1, wherein said predetermined included angle is 89 degrees or less and 80 degrees or more.

3. The fastener of claim 1, wherein said predetermined included angle is 83 degrees.

4. The fastener of claim 1, wherein said gripping portion and said curved portion are in an interference fit.

5. The fastening device according to claim 1, wherein both side walls of the fixing bracket are provided with concave reinforcing ribs, and the clamping member is limited at the tops of the reinforcing ribs.

6. The fastening device according to claim 5, wherein the reinforcing rib is provided to extend in an axial direction of the fixing bracket.

7. The fastener according to claim 1, wherein a friction portion is further formed on the trim member, and the friction portion contacts a bottom end of the curved portion to increase a friction force between the trim member and the curved portion.

8. The fastener according to claim 7, wherein the friction portion is a punched groove formed on an inner side wall of the fastening portion, and a punched groove formed on a surface of the fastener.

9. The fastening device according to claim 1, wherein the fixing bracket and the engaging member are both U-shaped in cross-section, and the engaging member is designed with a cut angle so that the engaging member can rotate in the fixing bracket.

10. The fastening device according to claim 1, wherein the fixing bracket, the fixing member and the connecting member are made of hot-dip galvanized steel, zinc-aluminum-magnesium steel or stainless steel.

11. A photovoltaic system comprising a photovoltaic module and a fastening device for a photovoltaic module according to any one of claims 1 to 10.