CN216973980U

CN216973980U - Photovoltaic mounting structure

Info

Publication number: CN216973980U
Application number: CN202220785042.0U
Authority: CN
Inventors: 李科庆; 薛新颖; 罗易; 曹麒麟
Original assignee: Zhejiang Astronergy New Energy Development Co Ltd
Current assignee: Zhejiang Astronergy New Energy Development Co Ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-07-15
Anticipated expiration: 2032-04-02

Abstract

The application discloses photovoltaic mounting structure, including preventing wind support and profiled sheet, prevent wind the support and be used for with purlin fixed connection, the profiled sheet has bellied installation department, the downside of installation department is fixed with the upper portion joint of preventing wind the support, the upside and the connecting piece joint of installation department are fixed, the connecting piece top is equipped with the clamp plate, clamp plate and connecting piece fixed connection, in order to compress tightly fixed photovoltaic module. Prevent wind support and connecting piece and all fixed with the profiled sheet joint, the connecting piece is fixed photovoltaic module with the clamp plate cooperation, and the simple easy operation of connected mode can effectively shorten construction cycle. The profiled steel sheet does not need to be provided with nail holes, so that the problems of nail hole corrosion, water leakage and the like are avoided; simultaneously, the profiled steel sheet can isolate the photovoltaic module from the indoor space, and the photovoltaic module is prevented from causing indoor fire.

Description

Photovoltaic mounting structure

Technical Field

The application relates to the technical field of building integrated photovoltaics, in particular to a photovoltaic mounting structure.

Background

In the prior art, a photovoltaic building integrated system usually adopts self-tapping nail fixing and gluing fixing to fix a photovoltaic module. However, the nail holes connected with the self-tapping nails are easy to corrode, water leakage is caused, and even the structural safety is influenced; the requirement of gluing fixing light on the construction environment is high, and the construction period is long.

Therefore, how to simplify the construction difficulty for fixing the photovoltaic module and reduce water leakage is a technical problem which needs to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model provides a photovoltaic mounting structure, its profiled steel sheet is connected through the mode of joint and is prevent wind support and connecting piece, has not only simplified connected mode, also can avoid offering the nail hole on the profiled steel sheet, has avoided the leakage problem that nail hole corruption caused.

For realizing above-mentioned purpose, the application provides a photovoltaic mounting structure, including preventing wind support and profiled sheet, prevent wind the support be used for with purlin fixed connection, profiled sheet has bellied installation department, the downside of installation department is fixed with the upper portion joint of preventing wind the support, the upside and the connecting piece joint of installation department are fixed, the connecting piece top is equipped with the clamp plate, clamp plate and connecting piece fixed connection, in order to compress tightly fixed photovoltaic module.

In some embodiments, the profiled steel sheet has an upward-convex ridge-shaped structure, the mounting portion is located at the top of the ridge-shaped structure, the lower ends of two sides of the mounting portion are provided with outward-convex fixing portions, the connecting piece is of a groove-shaped structure, a notch of the connecting piece is covered downwards and arranged above the mounting portion, and a hook edge portion used for being clamped and fixed with the fixing portions is arranged at the notch of the connecting piece.

In some embodiments, the mounting portion can be downwardly snap-fitted to an upper portion of the wind-proof support, and the upper portion of the wind-proof support has a fixing edge which can be snap-fitted to the fixing portion.

In some embodiments, the wind-proof support is a groove-shaped structure, the notch of the wind-proof support is folded outwards and downwards to form a folded edge, the lower end of the folded edge is folded inwards to form a fixed edge, and the folded edge forms a mounting platform which can be attached to the top end of the mounting portion at the top end of the wind-proof support.

In some embodiments, the width of the mounting portion gradually increases from top to bottom, the width of the connecting member gradually increases from top to bottom, the two sides of the connecting member form a matching portion attached to the two sides of the mounting portion, the distance between the two bending edges gradually increases from top to bottom, and the two bending edges are attached to the two sides of the mounting portion from below respectively.

In some embodiments, the bottom surface of the groove-shaped structure of the connecting piece is spaced from the top of the mounting part by a preset distance, the bottom of the groove-shaped structure of the connecting piece is provided with a mounting hole, the bottom of the connecting piece is provided with a fastening nut corresponding to the mounting hole, and a limiting structure used for limiting the fastening nut is further arranged in the connecting piece.

In some embodiments, the bottom surface of the groove-shaped structure of the connecting piece is spaced from the top of the mounting part by a preset distance, the bottom of the groove-shaped structure of the connecting piece is provided with a mounting hole, the mounting hole is provided with internal threads, and the pressure plate is fixedly connected with the mounting hole through a fastening bolt.

In some embodiments, the limiting structure comprises a limiting bulge positioned at the bottom of the groove-shaped structure of the connecting piece and a positioning part which extends from the side wall of the connecting piece to the bottom and supports the fastening nut from the lower part, and the pressure plate is fixedly connected with the fastening nut through the fastening bolt.

In some embodiments, the profiled steel sheet further has drainage channels on both sides of the ridge structure, the drainage channels being disposed parallel to and adjacent to the ridge structure.

In some embodiments, the photovoltaic module further comprises a mounting frame fixedly mounted on the periphery of the photovoltaic module, the mounting frame is provided with a pressing edge facing away from the photovoltaic module, the pressing edge is located between the pressing plate and the connecting piece, and the pressing plate is fixedly connected with the connecting piece so as to press the mounting frame.

The utility model provides a photovoltaic mounting structure, including preventing wind support and profiled sheet, prevent wind the support for with purlin fixed connection, the profiled sheet has bellied installation department, the downside of installation department is fixed with the upper portion joint of preventing wind the support, the upside and the connecting piece joint of installation department are fixed, the connecting piece top is equipped with the clamp plate, clamp plate and connecting piece fixed connection, in order to compress tightly fixed photovoltaic module.

Prevent wind support and connecting piece and all fixed with profiled sheet joint, the connecting piece is fixed photovoltaic module with the clamp plate cooperation, and the simple easy operation of connected mode can effectively shorten construction cycle. The profiled steel sheet does not need to be provided with nail holes, so that the problems of nail hole corrosion, water leakage and the like are avoided; simultaneously, the profiled steel sheet can isolate the photovoltaic module from the indoor space, and indoor fire caused by the photovoltaic module is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of a photovoltaic module mounted in an embodiment of the photovoltaic mounting structure provided in the present application;

FIG. 2 is an enlarged view of a fixed node in the photovoltaic device structure of FIG. 1;

FIG. 3 is a front view of the photovoltaic device structure of FIG. 1;

FIG. 4 is a side view of the photovoltaic device structure of FIG. 1;

FIG. 5 is a cross-sectional view taken along the plane A-A in FIG. 4;

FIG. 6 is a cross-sectional view of the fixed node of FIG. 5;

FIG. 7 is a side view of the stamped steel sheet of FIG. 1;

FIG. 8 is a schematic view of the connection between the profiled steel sheet and the connecting frame in FIG. 1;

FIG. 9 is a schematic view of the configuration of the profiled steel sheet of FIG. 1 in combination with a wind shield support.

Wherein the reference numerals in fig. 1 to 9 are:

profiled steel sheet 1, prevent wind support 2, connecting piece 3, clamp plate 4, fastening bolt 5, serging support 6, photovoltaic module 7, purlin 8, installation department 11, fixed part 12, water drainage tank 13, first hem seal portion 14, second hem seal portion 15, mounting platform 21, fixed limit 22, cooperation portion 31, fastening nut 32, collude portion 33, location portion 34.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to enable those skilled in the art to better understand the scheme of the present application, the present application will be described in further detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 9, fig. 1 is a schematic structural view of a photovoltaic module mounted in an embodiment of a photovoltaic mounting structure provided in the present application; FIG. 2 is an enlarged view of a fixed node in the photovoltaic device structure of FIG. 1; FIG. 3 is a front view of the photovoltaic device structure of FIG. 1; FIG. 4 is a side view of the photovoltaic device structure of FIG. 1; FIG. 5 is a cross-sectional view taken along the plane A-A in FIG. 4; FIG. 6 is a cross-sectional view of the fixed node of FIG. 5; FIG. 7 is a side view of the stamped steel sheet of FIG. 1; FIG. 8 is a schematic view of the connection between the profiled steel sheet and the connecting frame in FIG. 1; FIG. 9 is a schematic view of the configuration of the profiled steel sheet of FIG. 1 in combination with a wind shield support.

The photovoltaic mounting structure provided by the application comprises a windproof support 2, a profiled steel sheet 1, a connecting piece 3 and a pressing plate 4, as shown in fig. 1 and 2. The windproof support 2 is fixedly connected with the purline 8, and the profiled steel sheet 1 is positioned above the windproof support 2 and is provided with an upward convex mounting part 11. The wind-proof holder 2 is inserted into the mounting portion 11 from below and is fixed to the mounting portion 11 by snap-fitting. The profiled steel sheets 1 can be connected to each other so as to cover the installation area of the photovoltaic module 7, and the connection mode between the profiled steel sheets 1 can be referred to the prior art. Connecting piece 3 is located 2 tops of preventing wind support, and connecting piece 3 is downward with the 11 locks of installation department, realizes that the joint is fixed. The windproof support 2 and the connecting piece 3 are connected with the mounting part 11 from the upper direction and the lower direction in a clamping manner, so that the fixing of the connecting piece 3 and the purline 8 is realized. The pressing plate 4 is arranged above the connecting piece 3 and is fixedly connected with the connecting piece 3 in a bolt connection mode, a riveting mode or a clamping mode and the like, and the pressing plate 4 downwards presses and fixes the side edge of the photovoltaic module 7 above the profiled steel sheet 1.

In some embodiments, as shown in fig. 2, profiled steel sheet 1 has an upwardly raised ridge that may be disposed perpendicular to purlin 8. The mounting part 11 is located at the top of the ridge-shaped structure, and the lower ends of the two sides of the mounting part 11 extend outwards, so that fixing parts 12 protruding outwards are formed on the two sides of the ridge-shaped structure. The connecting piece 3 is of a groove-shaped structure, and a hook edge part 33 extending inwards is arranged at the notch of the connecting piece 3. During installation, the notch of the connecting piece 3 is covered downwards and arranged above the installation part 11, and the side walls at two sides of the connecting piece 3 are positioned on the hook edge parts 33 at two sides of the installation part 11 and are clamped and fixed on the fixing parts 12 at two sides of the installation part 11. Each profiled steel sheet 1 can be provided with a ridge structure in the middle, and the overall dimension of the photovoltaic module 7 can be set to be integral multiple of the distance between the installation parts 11 of the two adjacent profiled steel sheets 1. Each profiled steel sheet 1 can also be provided with a ridge structure according to the overall dimension of the photovoltaic component 7, and the ridge structure can support two ends of the photovoltaic component 7. Thus, the photovoltaic module 7 is lapped on the mounting portion 11 of the profiled steel sheet 1 without an overhanging portion.

In some embodiments, the wind-proof support 2 is connected with the profiled steel sheet 1 by clamping. As shown in fig. 9, the wind-proof support 2 may be a rectangular groove-shaped structure, and the bottom of the groove is attached to the purline 8 and is fixedly connected to the purline 8 by means of bolts or rivets. The notch of the windproof support 2 is folded towards the outer lower side to form a bent edge, and the lower end of the bent edge is folded inwards to form a fixed edge 22. The lower side of the mounting part 11 is formed into a groove-shaped structure, and the inner sides of the two fixing parts 12 are formed into supporting surfaces. The upper portion of the windproof support 2 can be inserted into the installation portion 11 from the lower portion, the two bending edges are respectively attached to two sides of the installation portion 11, the upper portion of the windproof support 2 abuts against the lower side of the supporting plane, and fixing edges 22 at the lower ends of the two bending edges are respectively attached to the supporting plane on the inner side of the installation portion 11, so that the windproof support 2 and the profiled steel sheet 1 are clamped. Of course, the user may also use fixing edges of other structures as required, for example, the fixing edges are provided with protrusions on both sides of the wind-proof support, which is not limited herein.

In some embodiments, the upper portion of the windproof support 2 is slightly smaller than the width of the supporting plane, the bending edge is bent at the top end of the windproof support 2 to form the mounting platform 21, and the mounting platform 21 can be attached to the top end of the mounting portion 11, so that the contact area of the windproof support 2 is increased, and the connection stability is improved.

In some embodiments, as shown in fig. 6, the cross section of the mounting portion 11 is approximately isosceles trapezoid, and the width of the mounting portion 11 gradually increases from top to bottom. The cross section of the connecting piece 3 is also similar to an isosceles trapezoid, and the width of the connecting piece gradually increases from top to bottom. Installation department 11 is the same with connecting piece 3's lateral wall angle, and connecting piece 3's both sides form with the cooperation portion 31 of the 11 both sides laminating of installation department, and cooperation portion 31 can be spacing, easy to assemble to connecting piece 3 in vertical orientation down with the 11 cooperation of installation department. In addition, the distance between two bending edges also increases from top to bottom gradually, and two bending edges are laminated with the both sides of installation department respectively from the below, and two bending edges can form the support to the both sides of installation department and the cooperation portion 31 of connecting piece 3 both sides. The lower ends of the two side surfaces of the mounting part are lower than the lower ends of the bending edges of the windproof support 2, so that the fixing part 12 can be clamped and matched with the fixing edges 22; the lower ends of the engaging portions 31 on both sides of the connecting member 3 are lower than the lower ends of both sides of the mounting portion, so that the hook portions 33 can be snap-fitted to the fixing edges 22.

In some embodiments, the bottom surface of the channel-like structure of the connecting member 3 is spaced a predetermined distance from the top of the mounting portion 11, as shown in fig. 8, the upper end of the mounting portion 11 forms a support plane, and the width of the upper end of the connecting member 3 is smaller than the width of the upper end of the mounting portion 11. The bottom surface of the connecting piece 3 and the supporting plane form a mounting cavity. Of course, the user may also set the mounting portion 11 and the connecting portion to have other structures, and set the limiting portion inside the connecting member 3, and vertically limit the connecting member 3 by the cooperation of the limiting portion and the mounting portion 11, which is not limited herein.

In some embodiments, the pressure plate 4 and the connecting piece 3 are fixedly connected through a fastening bolt 5, as shown in fig. 6 and 8, a mounting hole is formed in the bottom of the trough-shaped structure, a fastening nut 32 corresponding to the mounting hole is arranged at the bottom of the trough-shaped structure, and a limiting structure is further arranged in the trough-shaped structure, and the limiting structure can axially position and circumferentially limit the nut. The fastening bolt 5 is twisted to be in threaded engagement with the fastening nut 32, thereby fixing the pressure plate 4. Of course, the user can also set the mounting hole as required to the screw hole, has fastened the bolt and has directly linked to each other with the screw hole, realizes photovoltaic module 7's fixed.

In some embodiments, the spacing structure includes a spacing protrusion and a positioning portion 34. As shown in fig. 8, the number of the limiting protrusions is at least two, and the limiting protrusions are positioned at the bottom of the groove-shaped structure and distributed on the periphery of the mounting hole. A limit groove is formed between the limit protrusions, the fastening nut 32 is arranged in the limit groove, and when the fastening bolt 5 is rotated, the limit groove can circumferentially limit the fastening nut 32. The positioning part 34 extends from the side wall of the groove structure to the bottom, and one end of the positioning part 34 far away from the side wall of the connecting piece 3 supports the fastening nut 32 from the lower part to axially position the fastening nut.

In some embodiments, the profiled steel sheet 1 is provided with a first locking edge portion 14 and a second locking edge portion 15 on two sides of the parallel ridge-like structure. As shown in fig. 7, the height of the top end of the first locking portion 14 is equal to the height of the top end of the mounting portion 11, the top of the first locking portion 14 is bent towards the direction away from the ridge-shaped structure, the second locking portion 15 is bent towards the direction close to the ridge-shaped structure, the second locking portion 15 can be inserted below the first locking portion 14, and the first locking portion and the second locking portion are connected in an overlapping manner, so that the plurality of profiled steel sheets 1 are connected to form an integrated structure, the photovoltaic module 7 is isolated from the indoor space, and the photovoltaic module 7 is prevented from causing indoor fire. The purlins 8 can also be provided with a serging support 6, and the serging support 6 can be made into a first serging portion 14 and a second serging portion 15 after connection.

In some embodiments, profiled steel sheet 1 also has drainage channels 13 on both sides of the ridge structure. As shown in fig. 7, the drain grooves 13 are arranged in a direction parallel to the ridge structure and adjacent to the ridge structure. Rainwater can flow into water drainage tank 13 along the ridge-shaped structure to along water drainage tank 13 outflow profiled steel sheet 1, avoid the rainwater to store up on profiled steel sheet 1, cause profiled steel sheet 1 to corrode. In addition, the drainage grooves 13 may be formed at positions of the profiled steel sheet 1 close to the first and second

locking edge portions

14 and 15, so that rainwater is drained at multiple points and rainwater accumulation is reduced. The lower parts of the first locking edge part 14 and the second locking edge part 15 can be provided with inclined surfaces, when the first locking edge part 14 and the second locking edge part 15 of the two profiled steel sheets 1 are connected, the inclined surfaces can form a trapezoid or triangle structure, and rainwater can flow into the drainage channel 13 along the triangle structure.

In some embodiments, the photovoltaic mounting structure further comprises a mounting frame, wherein the mounting frame is fixedly mounted on the periphery of the photovoltaic module and extends to the direction away from the photovoltaic module to form a pressing edge. The pressing edge is located between the pressing plate and the connecting piece, and the pressing edge is pressed tightly when the pressing plate is fixedly connected with the connecting piece, so that the photovoltaic module is fixed. The periphery of the photovoltaic module is provided with the mounting frame, so that the influence of the shadow cast by the pressing plate on the power generation of the photovoltaic module can be reduced, and the pressure born by the photovoltaic module is reduced. Of course, the user can also directly fix the photovoltaic module through the pressing plate according to the needs, and the limitation is not made herein.

Prevent wind support 2 and connecting piece 3 all through the mode of joint and profiled sheet 1 fixed connection in this application. In the installation process, the windproof support 2 is fixed on the purline 8 by a tapping screw, and the installation part 11 is aligned to the upper installation platform 21 of the windproof support 2. The profiled steel sheet 1 is then pressed down, so that the fastening section 12 of the profiled steel sheet 1 is deformed and thus fastened to the wind-break support 2. The supporting plane of the profiled steel sheet 1 is attached to the mounting platform 21 of the windproof support 2, and the fixing part 12 of the profiled steel sheet 1 is attached to the fixing edge 22 of the windproof support 2, so that the profiled steel sheet 1 is prevented from being separated from the windproof support 2. The serging support 6 can be positioned according to the position of the serging part of the profiled steel sheet 1 and is installed on the roof purline 8 through a self-tapping screw. The first and

second locklip portions

14 and 15 of the profiled steel sheet 1 cooperate to achieve the locklip operation of the profiled steel sheet 1. After the profiled steel sheet 1 is installed, the connecting piece 3 is installed on the installation part 11 of the profiled steel sheet 1, and the hook edge part 33 of the connecting piece 3 is guaranteed to be clamped with the fixing part 12 of the profiled steel sheet 1. And then positioning the photovoltaic modules 7 at two sides of the connecting piece 3, and installing the pressing block on the frame of the photovoltaic module 7. The fastening bolt 5 passes through the mounting hole at the center of the pressing block and the connecting piece 3, and the fastening bolt 5 is connected with the fastening nut 32. The connecting piece 3 is tightly attached to the profiled steel sheet 1 due to the pretightening force of the bolt, so that the photovoltaic module 7 is locked. In addition, the fastening bolt 5 exerts an upward acting force on the connecting piece 3, the connecting piece 3 is pressed against the profiled steel sheet 1 while being pulled upwards, and a friction force is formed between the two surfaces, so that the connection firmness is improved.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The photovoltaic mounting structure provided by the present application is described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. The utility model provides a photovoltaic mounting structure, its characterized in that, includes prevent wind support (2) and profiled sheet (1), prevent wind support (2) for with purlin (8) fixed connection, profiled sheet (1) has bellied installation department (11), the downside of installation department (11) with prevent wind the upper portion joint of support (2) and fix, the upside and connecting piece (3) joint of installation department (11) are fixed, connecting piece (3) top is equipped with clamp plate (4), clamp plate (4) with connecting piece (3) fixed connection, in order to compress tightly fixed photovoltaic module (7).

2. The photovoltaic mounting structure of claim 1, wherein the profiled steel sheet (1) has a ridge-shaped structure which is convex upwards, the mounting portion (11) is located at the top of the ridge-shaped structure, the lower ends of the two sides of the mounting portion (11) are provided with fixing portions (12) which are convex outwards, the connecting piece (3) is of a groove-shaped structure, the groove opening of the connecting piece is covered downwards and arranged above the mounting portion (11), and the groove opening of the connecting piece (3) is provided with a hook edge portion (33) which is used for being fixed with the fixing portions (12) in a clamping manner.

3. The photovoltaic mounting structure according to claim 2, wherein the mounting portion (11) is downwardly engageable with an upper portion of the windproof support (2), and the upper portion of the windproof support (2) has a fixing edge (22) engageable with the fixing portion (12).

4. The photovoltaic mounting structure according to claim 3, wherein the windproof support (2) is a groove-shaped structure, the notch of the windproof support (2) is folded outwards and downwards to form a bent edge, the lower end of the bent edge is bent inwards to form the fixed edge (22), and the bent edge forms a mounting platform (21) which can be attached to the top end of the mounting portion (11) at the top end of the windproof support (2).

5. The photovoltaic mounting structure according to claim 4, wherein the width of the mounting portion (11) is gradually increased from top to bottom, the width of the connecting member (3) is gradually increased from top to bottom, the two sides of the connecting member (3) form a matching portion (31) attached to the two sides of the mounting portion (11), the distance between the two bending edges is gradually increased from top to bottom, and the two bending edges are attached to the two sides of the mounting portion (11) from below.

6. The photovoltaic mounting structure of claim 5, wherein a preset distance is arranged between the bottom surface of the groove-shaped structure of the connecting piece (3) and the top of the mounting part (11), a mounting hole is formed in the bottom of the groove-shaped structure of the connecting piece (3), a fastening nut (32) corresponding to the mounting hole is arranged at the bottom of the connecting piece (3), and a limiting structure used for limiting the fastening nut (32) is further arranged in the connecting piece (3).

7. The photovoltaic mounting structure according to claim 5, wherein the bottom surface of the groove-shaped structure of the connecting piece (3) is spaced from the top of the mounting part (11) by a preset distance, the bottom of the groove-shaped structure of the connecting piece (3) is provided with a mounting hole, the mounting hole is provided with an internal thread, and the pressure plate (4) is fixedly connected with the mounting hole through a fastening bolt (5).

8. The photovoltaic mounting structure according to claim 6, wherein the limiting structure comprises a limiting protrusion positioned at the bottom of the groove-shaped structure of the connecting piece (3) and a positioning part (34) extending from the side wall of the connecting piece (3) to the bottom and supporting the fastening nut (32) from below, and the pressure plate (4) is fixedly connected with the fastening nut (32) through a fastening bolt (5).

9. The photovoltaic mounting structure according to any one of claims 2 to 8, characterized in that the profiled steel sheet (1) further has drainage grooves (13) on both sides of the ridge-like structure, the drainage grooves (13) being arranged parallel to and adjacent to the ridge-like structure.

10. The mounting structure according to any one of claims 1 to 8, further comprising a mounting frame fixedly mounted on the periphery of the photovoltaic module (7), wherein the mounting frame has a pressing edge facing away from the photovoltaic module, the pressing edge is located between the pressing plate (4) and the connecting member (3), and the pressing plate (4) is fixedly connected with the connecting member (3) to press the mounting frame.