Photovoltaic module mounting structure, photovoltaic roof and buttress

Abstract

The utility model relates to the field of photovoltaic module installation, aims to solve the problem of low photovoltaic module installation efficiency in the prior art, and provides a photovoltaic module installation structure, a photovoltaic roof and a buttress. The photovoltaic module mounting structure comprises a plurality of rows of buttresses arranged at intervals along a first direction and a plurality of photovoltaic modules. Each row of buttresses comprises a plurality of buttresses arranged at intervals in the second direction. The buttress is provided with a first supporting face and a second supporting face which are spaced in the first direction. A connecting plate part is convexly arranged on the first supporting surface; and the second supporting surface is provided with a limiting part. Each row of photovoltaic modules are respectively supported between the first supporting surfaces and the second supporting surfaces, which are close to each other, of two adjacent rows of buttresses along the first direction, and each photovoltaic module is provided with a first end and a second end which are spaced along the first direction; the first end is connected to the connecting plate part, and the second end is in limiting fit with the limiting part. The photovoltaic roof mounting structure has the beneficial effects that the photovoltaic roof mounting efficiency is high, and the roof is not damaged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of photovoltaic module installation, in particular to a photovoltaic module installation structure, a photovoltaic roof and a support pier. BACKGROUND

[0002] In the known technology, when the photovoltaic module is installed on the roof, the photovoltaic module needs to be connected to the support structure on the roof to form a photovoltaic roof. However, in the known technology, the operation of installing the photovoltaic module on the support structure is complex, and the installation efficiency of the photovoltaic module is low. CONTENT OF THE INVENTION

[0003] The present application provides a photovoltaic module installation structure, a photovoltaic roof and a support pier to solve the problem of low installation efficiency of the photovoltaic module in the known technology.

[0004] In a first aspect, the embodiments of the present application provide a photovoltaic module installation structure, which comprises a plurality of rows of support piers arranged at intervals along a first direction and a plurality of photovoltaic modules. Each row of support piers comprises a plurality of support piers arranged at intervals along a second direction. The support piers have first support surfaces and second support surfaces arranged at intervals along the first direction. The first support surfaces are provided with connecting plate portions; the second support surfaces are provided with limiting portions. Each row of photovoltaic modules is supported between the mutually approaching first support surfaces and second support surfaces of the two adjacent rows of support piers along the first direction, and the photovoltaic modules have first ends and second ends arranged at intervals along the first direction; the first ends are connected to the connecting plate portions, and the second ends are limited by the limiting portions.

[0005] The photovoltaic module installation structure in the embodiments of the present application can be installed by limiting the photovoltaic module and the limiting portion of the support pier, and connecting the connecting plate portion of the photovoltaic module and the support pier, so that the installation of the photovoltaic module is completed, and the photovoltaic module is installed quickly and efficiently. Moreover, the photovoltaic module is installed on the two adjacent rows of support piers, so that each photovoltaic module and each support pier can be connected into a whole, which has good stability and stronger wind lifting resistance.

[0006] In a possible implementation, the first support surfaces and the second support surfaces are parallel to each other. The mutually approaching first support surfaces and second support surfaces of the two adjacent support piers along the first direction are coplanar to jointly support the bottom surface of the photovoltaic module.

[0007] In this implementation, the coplanar first support surfaces and second support surfaces are suitable for jointly supporting the flat bottom surface of the photovoltaic module.

[0008] In a possible implementation, the support pier comprises a base portion, a first support portion and a second support portion. The base portion is in the shape of a strip extending along the first direction, and the first support portion and the second support portion are respectively provided on the two ends of the base portion along the first direction. The first support surface is the surface on the side of the first support portion away from the base portion, and the second support surface is the surface on the side of the second support portion away from the base portion.

[0009] In this embodiment, the base of the pier can form reliable contact and support with the roof.

[0010] In a possible implementation, the first support portion has a greater protruding height than the second support portion, and the photovoltaic module is inclined relative to the base.

[0011] In this embodiment, the photovoltaic module is arranged at a suitable angle to achieve higher sunlight utilization.

[0012] In a possible implementation, the photovoltaic module mounting structure further comprises a fastener. The connecting plate portion is provided with a first connecting hole. The photovoltaic module is provided with a second connecting hole. The fastener fastens and connects the photovoltaic module on both sides of the connecting plate portion to the connecting plate portion through the first connecting hole and the second connecting hole.

[0013] In this embodiment, the fastener can conveniently fix the photovoltaic module. Moreover, since the two photovoltaic modules are fastened on the same connecting plate portion, the relative positions of the two photovoltaic modules spaced apart along the second direction can be ensured.

[0014] In a possible implementation, the photovoltaic module is provided with a plug-in hole at an end close to the second support surface along the first direction. The limiting portion comprises a first folded edge and a second folded edge. The first folded edge protrudes from the second support surface. The second folded edge is bent and connected to the first folded edge and is plug-in matched to the plug-in hole.

[0015] In this embodiment, the second folded edge of the limiting portion is plug-in matched to the plug-in hole, which can limit the photovoltaic module from being separated from the pier along the vertical direction, and can ensure that the photovoltaic module is reliably mounted on the pier.

[0016] In a possible implementation, the photovoltaic module is provided with an additional frame at an end close to the second support surface along the first direction. The additional frame comprises a rectangular frame and an extension wall. The extension wall protrudes from the bottom of the rectangular frame to the inner side of the photovoltaic module. The limiting portion comprises a third folded edge and a fourth folded edge. The third folded edge protrudes from the second support surface. The fourth folded edge is bent and connected to the third folded edge. The extension wall is clamped between the fourth folded edge and the second support surface.

[0017] In this embodiment, the extension wall is clamped between the fourth folded edge and the second support surface, so that the fourth folded edge can limit the photovoltaic module from being separated from the pier along the vertical direction, and can ensure that the photovoltaic module is reliably mounted on the pier.

[0018] In a possible implementation, each row of the support pillars includes a plurality of support pillars arranged at intervals along a second direction, the second direction being perpendicular to the first direction. The connecting plate is located at a middle position of the first support surface along the second direction, the first support surface including two first surface regions respectively located on two sides of the connecting plate along the second direction; the second support surface including two second surface regions connected along the second direction, the two second surface regions being respectively provided with the limiting portions. The first ends of two adjacent photovoltaic modules along the second direction are respectively supported on the two first surface regions of the same first support surface and are respectively connected to the two sides of the connecting plate. The second ends of the two adjacent photovoltaic modules along the second direction are respectively supported on the two second surface regions of the same second support surface and are respectively limited by the two limiting portions.

[0019] In this implementation, each support pillar located at the middle of the second direction serves as a common support pillar of two adjacent photovoltaic modules along the second direction. In this way, the amount of support pillars can be reduced, and the photovoltaic modules in the same row can be arranged compactly, thereby improving the space utilization. In addition, the photovoltaic modules distributed along the second direction are also connected together by the support pillars, thereby further improving the integrity of the photovoltaic module square array, and the photovoltaic module square array has better stability and stronger wind resistance.

[0020] In a second aspect, the embodiments of the present application provide a photovoltaic roof, which includes a roof and the photovoltaic module mounting structure described above. Each support pillar of the photovoltaic module mounting structure is supported on the roof.

[0021] The photovoltaic roof in this embodiment includes the photovoltaic module mounting structure described above, and therefore has the technical effects described above.

[0022] In a possible implementation, the photovoltaic module mounting structure is in separable contact with the roof by self weight.

[0023] In this implementation, the support pillars can be simply placed on the roof without being connected to the roof. In this way, the construction steps can be reduced, the waterproof structure of the roof can be prevented from being damaged, and the subsequent removal during operation and maintenance is facilitated.

[0024] In a third aspect, the embodiments of the present application provide a support pillar for mounting a photovoltaic module. The support pillar has a first support surface and a second support surface arranged at intervals along a first direction; the first support surface and the second support surface are parallel to each other, so that the first support surface and the second support surface of two adjacent support pillars along the first direction can jointly support the photovoltaic module. The first support surface is provided with a connecting plate portion, and the connecting plate portion is used to connect one end of the photovoltaic module along the first direction by a fastener. The second support surface is provided with a limiting portion, and the limiting portion is used to limit the other end of the photovoltaic module along the first direction.

[0025] The support pillar in this embodiment can conveniently and reliably achieve the support and mounting of the photovoltaic module, and has a simple structure and is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0027] Figure 1 A perspective view of the photovoltaic roof according to the embodiment of the present application.

[0028] Figure 2 A side view of the photovoltaic roof according to the embodiment of the present application. Figure 1

[0029] Figure 3 A perspective view of the pier according to the embodiment of the present application.

[0030] Figure 4 A partial enlarged view of the photovoltaic roof according to the embodiment of the present application. Figure 2

[0031] Figure 5 A perspective view of the photovoltaic module according to the embodiment of the present application.

[0032] Figure 6 An enlarged view of the photovoltaic module according to the embodiment of the present application at A. Figure 5

[0033] An enlarged view of the photovoltaic module according to the embodiment of the present application at B. Figure 7 Figure 5 An enlarged view of the photovoltaic roof according to the embodiment of the present application at C in a top view state (the invisible lines are shown in the figure).

[0034] Figure 8 Figure 1 An enlarged view of the photovoltaic roof according to the embodiment of the present application at D.

[0035] Figure 9 A perspective view of the pier according to another embodiment of the present application. Figure 1

[0036] A schematic view of the cooperation of the pier and the photovoltaic module according to the embodiment of the present application. Figure 10

[0037] An enlarged view of the photovoltaic roof according to the embodiment of the present application at E. Figure 11 Figure 10 An enlarged view of the photovoltaic roof according to the embodiment of the present application at E.

[0038] Figure 12 Figure 11 An enlarged view of the photovoltaic roof according to the embodiment of the present application at E.

[0039] ​​​​​​Main element symbol explanation: 100 - photovoltaic roof; 110 - roof; 120 - photovoltaic module mounting structure; 11, 11a - support post; 12 - photovoltaic module; 13 - connecting plate portion; 14, 14a - limiting portion; 15 - base portion; 16 - first support portion; 17 - second support portion; 18 - fastener; 19 - outer frame; 20 - photovoltaic glass module; 21 - first hem; 22 - second hem; 23 - third hem; 24 - fourth hem; 25 - attached frame; 26 - rectangular frame; 27 - extension wall; X - first direction; Y - second direction; G - gravity direction; P1 - first support surface; P2 - second support surface; P3 - first surface area; P4 - second surface area; D1 - first end; D2 - second end; K1 - first connecting hole; K2 - second connecting hole; K3 - insertion hole. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments of the present application.

[0041] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be intervening elements. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be intervening elements. When an element is referred to as being "disposed" on another element, it can be directly on the other element or there can be intervening elements. The terms "vertical", "horizontal", "left", "right", and similar terms as used herein are for purposes of description only.

[0042] Unless otherwise defined, all 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. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0043] Some embodiments of the present application are described in detail. The following embodiments and features of the embodiments can be combined with each other in the case of no conflict.

[0044] EMBODIMENTS

[0045] Reference Signs Figure 1 and Figure 2The embodiment provides a photovoltaic roof 100, which comprises a roof 110 and a photovoltaic module mounting structure 120. The photovoltaic module mounting structure 120 comprises a plurality of piers 11 and a plurality of photovoltaic modules 12. The plurality of photovoltaic modules 12 are mounted on the roof 110 through the plurality of piers 11.

[0046] In the embodiment, the roof 110 can be a horizontal roof, that is, the mounting surface of the roof 110 is perpendicular to the direction of gravity G. In other embodiments, the roof 110 can also be a roof with a small inclination (for example, less than 5°).

[0047] In the embodiment, the pier 11 can be a prefabricated whole, which only needs to be prefabricated in a factory and then transported to a site for installation, without the need for on-site casting, thereby reducing construction difficulty or shortening construction period.

[0048] The pier 11 can be made of concrete or other materials, which are not limited herein.

[0049] Continuing to refer to Figure 1 and Figure 2 In the embodiment, the plurality of piers 11 comprises a plurality of rows of piers 11 arranged at intervals in a first direction X, and each row of piers 11 comprises a plurality of piers 11 arranged at intervals in a second direction Y. The first direction X and the second direction Y can be parallel to the roof 110 respectively, and the second direction Y is perpendicular to the first direction X. In this way, the plurality of piers 11 are distributed on the roof 110 in a matrix form. Figure 1 In the embodiment, the plurality of piers 11 comprises four rows of piers 11, and each row of piers 11 comprises four piers 11.

[0050] When the roof 110 is a horizontal roof, the first direction X and the second direction Y are both in a horizontal direction, and are perpendicular to the direction of gravity G.

[0051] The plurality of photovoltaic modules 12 comprises a plurality of rows of photovoltaic modules 12 arranged at intervals in the first direction X. Each row of photovoltaic modules 12 comprises a plurality of photovoltaic modules 12 arranged in sequence in the second direction Y and supported between two rows of piers 11 adjacent in the first direction X. Figure 1 In the embodiment, the plurality of photovoltaic modules 12 comprises three rows of photovoltaic modules 12, and each row of photovoltaic modules 12 comprises three photovoltaic modules 12.

[0052] Each photovoltaic module 12 is supported between two piers 11 adjacent in the second direction Y, and each pier 11 located in the middle of the second direction Y serves as a shared pier 11 of two photovoltaic modules 12 adjacent in the second direction Y. In this way, the amount of piers 11 can be reduced, and the photovoltaic modules 12 in the same row can be arranged compactly, thereby improving space utilization.

[0053] In addition, after the photovoltaic module 12 square matrix of the embodiment is installed, each photovoltaic module 12 and each pier 11 can be connected into a whole, so that the stability is good and the wind lifting resistance is stronger.

[0054] For reference Figures 2-4 In this embodiment, the support 11 has a first support surface P1 and a second support surface P2 spaced apart along the first direction X. The first support surface P1 is provided with a connecting plate portion 13 at a middle position along the second direction Y, and the first support surface P1 includes two first surface regions P3 respectively located on both sides of the connecting plate portion 13 along the second direction Y. The second support surface P2 includes two second surface regions P4 connected along the second direction Y, and the two second surface regions P4 are respectively provided with a limiting portion 14.

[0055] The photovoltaic module 12 is supported between the mutually approaching first support surface P1 and the second support surface P2 of the two adjacent support 11 along the first direction X. The photovoltaic module 12 has a first end D1 (the higher end in the figure) and a second end D2 (the lower end in the figure) spaced apart along the first direction X, the first end D1 is connected to the connecting plate portion 13, and the second end D2 is limitedly matched with the limiting portion 14. The first ends D1 of the two adjacent photovoltaic modules 12 along the second direction Y are respectively supported on the two first surface regions P3 of the same first support surface P1. The second ends D2 of the two adjacent photovoltaic modules 12 along the second direction Y are respectively supported on the two second surface regions P4 of the same second support surface P2.

[0056] The photovoltaic module mounting structure 120 of this embodiment, the photovoltaic module 12 and the limiting portion 14 of the support 11 are limitedly matched with each other, and the photovoltaic module 12 is connected with the connecting plate portion 13, so that the photovoltaic module 12 is reliably installed and fixed.

[0057] In addition, in this embodiment, all the supports 11 and the photovoltaic modules 12 are connected together to form a whole, so that when the roof 110 is a horizontal roof or a roof with a small inclination angle, the photovoltaic module mounting structure 120 is in separable contact with the roof 110 through the self weight of the whole, that is, the photovoltaic module mounting structure 120 can be stably and reliably arranged on the roof 110 without the need of additional fixed connection between the support 11 and the roof 110 by bonding, bolt connection or other forms.

[0058] Of course, when necessary, the support 11 can also be fixed with the roof 110 by bonding, bolt connection or other forms to further improve the installation reliability of the photovoltaic module mounting structure 120. At this time, this installation mode can further adapt to a roof 110 with a larger inclination angle or be applied in an environment with larger wind force.

[0059] For reference Figures 2-4 In this embodiment, the first support surface P1 and the second support surface P2 are parallel to each other. By adjusting the spacing of the adjacent supports 11 along the first direction X, the mutually approaching first support surface P1 and the second support surface P2 of the two adjacent supports 11 along the first direction X can be coplanar to jointly support the bottom surface of the photovoltaic module 12.

[0060] In the embodiment, the support 11 comprises a base 15, a first support portion 16 and a second support portion 17. The base 15 is in the shape of a strip extending along the first direction X, and the first support portion 16 and the second support portion 17 are respectively protruded from two ends of the base 15 along the first direction X. The first support surface P1 is a surface on a side of the first support portion 16 away from the base 15, and the second support surface P2 is a surface on a side of the second support portion 17 away from the base 15.

[0061] Referring mainly to Figure 3 In the embodiment, the limiting portion 14 comprises a first folded edge 21 and a second folded edge 22. The first folded edge 21 is protruded from the second support surface P2, and the second folded edge 22 is bent and connected to the first folded edge 21. The first folded edge 21 and the second folded edge 22 together form an L-shaped hook structure for limiting cooperation with the photovoltaic module 12.

[0062] In some embodiments, the protruding height of the first support portion 16 is greater than the protruding height of the second support portion 17. In this way, the photovoltaic module 12 is inclined relative to the base 15, which is beneficial for arranging the photovoltaic module 12 at a suitable inclination angle to obtain a higher sunlight utilization rate.

[0063] In other embodiments, the protruding height of the first support portion 16 is equal to the protruding height of the second support portion 17. In this case, the photovoltaic module 12 is parallel to the base 15, which can be suitable for arrangement in equatorial regions or for other special arrangement scenarios.

[0064] Figures 5-7 A structural schematic diagram of the photovoltaic module 12 of the embodiment is shown.

[0065] Referring mainly to Figure 5 The photovoltaic module 12 of the embodiment is generally rectangular, and the long sides are parallel to the second direction Y, and the short sides are parallel to the first direction X.

[0066] Referring mainly to Figure 6 The photovoltaic module 12 is provided with second connecting holes K2 on two sides along the second direction Y. The second connecting holes K2 are located at the first end D1 of the photovoltaic module 12.

[0067] Referring mainly to Figure 7 The photovoltaic module 12 is provided with plug-in holes K3 at an end thereof along the first direction X close to the second support surface P2. That is, the plug-in holes K3 are provided at the second end D2 of the photovoltaic module 12. In the embodiment, there are two plug-in holes K3, which are arranged at intervals along the second direction Y.

[0068] The photovoltaic module 12 in the embodiment comprises an outer frame 19 and a photovoltaic glass assembly 20. The photovoltaic glass assembly 20 is used for photovoltaic power generation, and the outer frame 19 surrounds the outer periphery of the photovoltaic glass assembly 20 to protect the photovoltaic glass assembly 20.

[0069] The second connecting hole K2 and the insertion hole K3 are both formed in the outer frame 19. In the embodiment, the outer frame 19 is connected by four side frames 25 to form a rectangle. Two second connecting holes K2 are arranged on the two side frames 25 opposite to each other along the second direction Y. Two insertion holes K3 are arranged on the side frame 25 close to the second end D2 of the photovoltaic module 12.

[0070] Referring to Figure 8 In the embodiment, the photovoltaic module mounting structure 120 further comprises a fastener 18. The connecting plate part 13 is provided with a first connecting hole K1 penetrating along the second direction Y. The fastener 18 penetrates through the first connecting hole K1 and the second connecting hole K2, and fastens the photovoltaic modules 12 on both sides of the connecting plate part 13 to the connecting plate part 13. In this way, the fastener 18 can conveniently fix the photovoltaic modules 12. Moreover, since the two photovoltaic modules 12 are fastened on the same connecting plate part 13, the relative positions of the two photovoltaic modules 12 spaced along the second direction Y can be ensured. The fastener 18 can be a connecting bolt or the like.

[0071] Referring to Figure 9 The two limiting parts 14 on the support 11 are respectively inserted and fitted into the insertion holes K3 of the two photovoltaic modules 12 supported on the support 11, so as to limit the photovoltaic modules 12 from being vertically separated from the support 11, and to ensure that the photovoltaic modules 12 are reliably mounted on the support 11.

[0072] In the installation of the photovoltaic module mounting structure 120 of the embodiment, each support 11 is accurately arranged on the roof 110, and then the photovoltaic module 12 is installed on the support 11.

[0073] The support 11 can be simply placed on the roof 110 without being connected to the roof 110. In this way, the construction steps can be reduced, the waterproof structure of the roof 110 can be avoided from being damaged, and the subsequent removal during operation and maintenance is facilitated.

[0074] In the installation of the photovoltaic module 12, the insertion hole K3 at the second end D2 (the lower end) of the photovoltaic module 12 is first inserted and fitted into the limiting part 14 at the second support surface P2, and the second end D2 of the photovoltaic module 12 is supported on the second support surface P2 and the first end D1 is supported on the first support surface P1. Then, the first end D1 of the photovoltaic module 12 is fastened and connected to the connecting plate part 13 at the first support surface P1 by the fastener 18 (such as a bolt).

[0075] After the installation is completed, the photovoltaic module mounting structure 120 as a whole has a large coverage area and a large self-weight, so as to be reliably and stably supported on the roof 110.

[0076] The mounting structure is limited by the limiting part 14 and fastened by the fastener 18, and only one end needs to be fastened to complete the installation, which is convenient to operate and efficient, and can realize quick installation and disassembly, and is simple to maintain.

[0077] Figures 10-12 A pier 11a of another embodiment is shown, which is similar to the pier 11 Figure 3 The difference between the pier 11a and the pier 11 is that the limiting part 14a provided at the second support surface P2 of the pier 11a includes a third folded edge 23 and a fourth folded edge 24, the third folded edge 23 is provided on the second support surface P2, and the fourth folded edge 24 is connected to the third folded edge 23 by bending, and the third folded edge 23 and the fourth folded edge 24 jointly form an L-shaped hook structure. In the pier 11a, the bending direction of the fourth folded edge 24 is toward the first support surface P1 side, which is opposite to the direction of the second folded edge 22 of the limiting part 14.

[0078] Referring to Figures 11-12 The frame 25 at one end of the photovoltaic module 12 close to the second support surface P2 along the first direction X includes a rectangular frame 26 and an extension wall 27. The extension wall 27 protrudes from the bottom of the rectangular frame 26 to the inside of the photovoltaic module 12. The extension wall 27 is clamped between the fourth folded edge 24 and the second support surface P2. In this way, the limiting part 14 can also achieve the effect of limiting the photovoltaic module 12 from being separated from the pier 11 in the vertical direction by blocking the extension wall 27.

[0079] The above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A photovoltaic module mounting structure, characterized by, Comprise: a plurality of piers arranged in multiple rows and spaced apart along a first direction; the piers have first support surfaces and second support surfaces spaced apart along the first direction; the first support surfaces are provided with connecting plate portions; the second support surfaces are provided with limiting portions; and a plurality of photovoltaic modules, each row of the photovoltaic modules being supported between the mutually approaching first support surfaces and second support surfaces of two adjacent rows of the piers along the first direction, and the photovoltaic modules having first ends and second ends spaced apart along the first direction; the first ends being connected to the connecting plate portions, and the second ends being limited by the limiting portions.

2. The photovoltaic module mounting structure according to claim 1, wherein: the first support surfaces and the second support surfaces are parallel to each other; the mutually approaching first support surfaces and the second support surfaces of two adjacent piers along the first direction are coplanar to jointly support the bottom surface of the photovoltaic module.

3. The photovoltaic module mounting structure according to claim 1, wherein: the piers comprise base portions, first support portions, and second support portions; the base portions are in the shape of strips extending along the first direction, and the first support portions and the second support portions are respectively provided on the two ends of the base portions along the first direction; the first support surfaces are the surfaces on the sides of the first support portions away from the base portions, and the second support surfaces are the surfaces on the sides of the second support portions away from the base portions.

4. The photovoltaic module mounting structure according to claim 3, wherein: the first support portions have a greater protruding height than the second support portions, and the photovoltaic modules are inclined relative to the base portions.

5. The photovoltaic module mounting structure according to claim 1, wherein: the photovoltaic module mounting structure further comprises fasteners; the connecting plate portions are provided with first connecting holes; the photovoltaic modules are provided with second connecting holes; the fasteners fasten and connect the photovoltaic modules on both sides of the connecting plate portions to the connecting plate portions through the first connecting holes and the second connecting holes.

6. The photovoltaic module mounting structure according to claim 1, wherein: one end of the photovoltaic module closer to the second support surface along the first direction is provided with a plug-in hole; the limiting portion comprises a first folded edge and a second folded edge; the first folded edge is provided on the second support surface, and the second folded edge is connected to the first folded edge by being bent and is plug-in fitted in the plug-in hole.

7. The photovoltaic module mounting structure according to claim 1, wherein: one end of the photovoltaic module closer to the second support surface along the first direction is provided with an additional frame; the additional frame comprises a rectangular frame and an extension wall; the extension wall protrudes from the bottom of the rectangular frame to the inside of the photovoltaic module; the limiting portion comprises a third folded edge and a fourth folded edge; the third folded edge is provided on the second support surface, and the fourth folded edge is connected to the third folded edge by being bent; the extension wall is clamped between the fourth folded edge and the second support surface.

8. The photovoltaic module mounting structure according to any one of claims 1-7, wherein: each row of the piers comprises a plurality of piers arranged in multiple rows and spaced apart along a second direction; the second direction is perpendicular to the first direction. The connecting plate part is located at the middle position of the first support surface along the second direction, the first support surface comprises two first surface areas respectively located on both sides of the connecting plate part along the second direction; the second support surface comprises two second surface areas connected along the second direction, and the two second surface areas are respectively provided with the limiting parts; The first ends of two photovoltaic modules adjacent along the second direction are respectively supported on the two first surface areas of the same first support surface and are respectively connected to both sides of the connecting plate part; The second ends of two photovoltaic modules adjacent along the second direction are respectively supported on the two second surface areas of the same second support surface and are respectively limited by the two limiting parts.

9. A photovoltaic roof, characterized in that Comprise: Roof; The photovoltaic module mounting structure of any one of claims 1-8, each of the piers of the photovoltaic module mounting structure is respectively supported on the roof.

10. The photovoltaic roof of claim 9, wherein: The photovoltaic module mounting structure is in separable contact with the roof by self-weight.

11. A pier for mounting a photovoltaic module, wherein: The pier has a first support surface and a second support surface spaced along a first direction; the first support surface and the second support surface are parallel to each other, so that the first support surface and the second support surface of two piers adjacent along the first direction and approaching each other can jointly support the photovoltaic module; The first support surface is provided with a connecting plate part, and the connecting plate part is used for connecting one end of the photovoltaic module along the first direction by a fastener; The second support surface is provided with a limiting part, and the limiting part is used for limiting cooperation with the other end of the photovoltaic module along the first direction.

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