Fixed structure and photovoltaic carport

Abstract

The utility model discloses a fixing structure, in which a pressing block assembly fixes two adjacent photovoltaic modules to the top of a water channel. The pressing block assembly includes a first pressing block, a second pressing block and a fastener. The first pressing block is arranged at the top of the water channel, and the second pressing block is arranged above the first pressing block along a third direction. The first pressing block includes a first base and two first pressing portions arranged on opposite sides of the first base along a first direction. The two first pressing portions are respectively connected to the water channel, and the fastener passes through the second pressing block and is connected to the first base. A conductive member is arranged between the photovoltaic module and the first base, and the conductive member abuts against the photovoltaic module and the first base on the upper and lower sides of the third direction, respectively. The utility model also discloses a photovoltaic carport. Such an arrangement improves the grounding performance of the photovoltaic module and reduces the installation cost.

Description

Technical Field

[0001] The utility model relates to the photovoltaic field, in particular to a fixed structure and a photovoltaic carport. Background Art

[0002] In order to improve the working safety of photovoltaic modules, the existing photovoltaic carports will be grounded. At present, the conventional grounding method in the industry is to directly connect the grounding wire to the grounding connection hole reserved in the photovoltaic module frame, so that the photovoltaic modules are connected and conductive. The labor cost and installation cost will be increased accordingly.

[0003] Therefore, it is necessary to provide a fixed structure and a photovoltaic carport to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a fixed structure and a photovoltaic carport to improve the grounding performance of photovoltaic components and reduce installation costs.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solution 1:

[0006] A fixing structure is used to fix a photovoltaic module on the top of a water channel, wherein the water channel is extended along a first direction, and a plurality of photovoltaic modules are arranged at intervals along a second direction, comprising:

[0007] A pressing block assembly, fixing two adjacent photovoltaic modules to the top of the water channel, the pressing block assembly comprising a first pressing block, a second pressing block and a fastener, the first pressing block being arranged at the top of the water channel, the second pressing block being arranged above the first pressing block along a third direction, the first pressing block comprising a first base and two first pressing portions arranged at opposite sides of the first base along the first direction, the two first pressing portions being connected to the water channel respectively, and the fastener passing through the second pressing block and connected to the first base;

[0008] A conductive member is disposed between the photovoltaic component and the first base, and the conductive member abuts against the photovoltaic component and the first base at upper and lower sides in the third direction respectively.

[0009] Furthermore, the conductive part is a sheet-like structure, comprising a first conductive part and two second conductive parts respectively arranged at both ends of the first conductive part, a mounting groove is formed between the two second conductive parts and the first conductive part, a first boss is provided at the top center of the first base, and the first boss is arranged in the mounting groove.

[0010] Further, two ends of the first conductive portion are respectively vertically connected to the same end of two second conductive portions, and the first conductive portion and the two second conductive portions form a "U"-shaped structure.

[0011] Furthermore, a plurality of contact portions are provided on the first conductive portion, the contact portions are arranged to protrude from the first conductive portion, the contact portions abut against the frame of the photovoltaic component, and / or the contact portions abut against the first base portion.

[0012] Furthermore, the conductive member is made of metal material or carbon conductive material.

[0013] Further, the first base has a first through hole, the first through hole passes through the first base and the first boss portion, and the fastener is threadedly connected to the first through hole.

[0014] Furthermore, the second pressing block includes a second base and two second pressing portions arranged at opposite ends of the second base, the two second pressing portions respectively abut against two adjacent photovoltaic components along the first direction, the second base has a second through hole, and the fastener passes through the second through hole and is threadedly connected to the first through hole.

[0015] Furthermore, the fixing structure further includes a cover plate, and the cover plate covers the top of the second pressing block.

[0016] Furthermore, the cover plate includes a main body portion and two connecting portions arranged at the edges of the main body portion, and the two connecting portions are respectively snap-connected with the two second pressing portions.

[0017] In order to achieve the above purpose, the utility model adopts the following technical solution 2:

[0018] A photovoltaic carport, comprising the fixed structure as described above, the photovoltaic carport also comprising columns and a plurality of purlins and a plurality of water guide grooves arranged on the tops of the columns, the purlins extending along the second direction, a plurality of the purlins being arranged at intervals along the first direction, the water guide grooves extending along the first direction, a plurality of the water guide grooves being arranged at intervals along the second direction at the tops of a plurality of the purlins, and the fixed structure being configured to fix the photovoltaic assembly to the tops of the water guide grooves.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model discloses a fixing structure for fixing a photovoltaic module on the top of a water channel, wherein the water channel is extended along a first direction, and a plurality of photovoltaic modules are arranged at intervals along a second direction. The fixing structure includes a pressing block assembly and a conductive member. The pressing block assembly includes a first pressing block, a second pressing block, and a fastener. The second pressing block is arranged above the first pressing block along a third direction, and the first pressing block includes a first base and two first pressing portions arranged on opposite sides of the first bottom along the first direction, the two first pressing portions are respectively connected to the water channel, and the fastener passes through the second pressing block and is connected to the first base. By arranging the conductive member between the photovoltaic module and the first base, the conductive member is respectively in contact with the photovoltaic module and the first base on the upper and lower sides of the third direction, thereby improving the grounding performance of the photovoltaic module and reducing the installation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a top view of the photovoltaic carport of the utility model;

[0022] Figure 2 It is a partial enlarged schematic diagram of the fixed structure, water guide trough, photovoltaic module and purlin in the utility model in the assembled state;

[0023] Figure 3 It is a top view of the conductive member in the utility model;

[0024] Figure 4 It is a partial enlarged schematic diagram of the first pressing block, the water guide groove, and the purlin in the utility model in the assembled state;

[0025] Figure 5 It is a cross-sectional schematic diagram of the cover plate in the utility model;

[0026] Figure 6 It is a cross-sectional schematic diagram of the second pressing block in the utility model;

[0027] Figure 7 yes Figure 6 Top view of the .

[0028] Description of reference numerals:

[0029] 10. Photovoltaic carport;

[0030] 100. Fixed structure;

[0031] 200, photovoltaic module; 210, mounting surface;

[0032] 300, water guide groove; 310, first main body; 320, first inclined portion; 330, second inclined portion; 340, fixing portion;

[0033] 400, purlin;

[0034] 1. a pressure block assembly; 11. a first pressure block; 111. a first base; 1111. a first boss portion; 1112. a second boss portion; 101. a first through hole; 112. a first pressing portion; 1121. a first bending portion; 1122. a second bending portion; 12. a second pressure block; 121. a second base portion; 102. a second through hole; 122. a second pressing portion; 1221. a vertical wall; 1222. a horizontal wall; 12221. a serrated portion; 1223. a slot portion; 13. a fastener;

[0035] 2. Conductive member; 201. Mounting groove; 21. First conductive portion; 221. Contact portion; 22. Second conductive portion;

[0036] 3. Cover plate; 31. Main body; 32. Connecting portion; 321. Protruding portion; 33. Abutting portion; 34. Groove portion; 341. First concave wall; 342. Second concave wall;

[0037] 4. Screws. DETAILED DESCRIPTION

[0038] The exemplary embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. If there are several embodiments, the features of these embodiments can be combined with each other without conflict. When the description refers to the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The contents described in the following exemplary embodiments do not represent all embodiments consistent with the present invention; on the contrary, they are merely examples of devices, products and / or methods that are consistent with some aspects of the present invention and are recorded in the claims of the present invention.

[0039] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the scope of protection of the present invention. The singular forms "a", "said" or "the" used in the specification and claims of the present invention are also intended to include plural forms, unless the context clearly indicates other meanings.

[0040] Please refer to Figures 1 to 7The utility model discloses a photovoltaic carport 10, which is suitable for a photovoltaic charging station. The photovoltaic carport 10 includes a fixed structure 100, and the photovoltaic carport 10 also includes a plurality of purlins 400 and a plurality of water guide grooves 300. The purlins 400 are extended along the second direction D2-D2, and the plurality of purlins 400 are arranged at intervals along the first direction D1-D1. The water guide grooves 300 are extended along the first direction D1-D1, and the plurality of water guide grooves 300 are arranged at intervals along the second direction D2-D2 at the top of the water guide groove 300. The utility model discloses a fixed structure 100, which is used to fix a photovoltaic module 200 on the top of the water guide groove 300, and the plurality of photovoltaic modules 200 are arranged at intervals along the second direction D2-D2. Such a configuration enables the frame of the photovoltaic module 200 to abut against the conductive member 2, thereby improving the grounding performance of the photovoltaic module 200.

[0041] Please refer to Figures 2 to 7 The fixing structure 100 includes a pressing block assembly 1 and a conductive member 2. The pressing block assembly 1 includes a first pressing block 11, a second pressing block 12 and a fastener 13. The first pressing block 11 is arranged at the top of the water channel 300, and the second pressing block 12 is arranged above the first pressing block 11 along the third direction D3-D3. The first pressing block 11 includes a first base 111 and two first pressing portions 112 arranged on opposite sides of the first base 111 along the first direction D1-D1. The two first pressing portions 112 are respectively connected to the water channel 300, and the fastener 13 passes through the second pressing block 12 in sequence and is connected to the first base 111. The conductive member 2 is arranged between the photovoltaic component 200 and the first base 111, and the conductive member 2 abuts against the photovoltaic component 200 and the first base 111 on the upper and lower sides of the third direction D3-D3. With such arrangement, the photovoltaic assembly 200 is grounded to the purlin 400 through the conductive member 2, the first pressing block 11, the water guide groove 300 in sequence, thereby improving the grounding performance of the photovoltaic assembly 200 and reducing the installation cost.

[0042] Please refer to Figures 2 to 3 In the embodiment of the utility model, the conductive member 2 is made of a metal material, and the metal has good conductivity, thereby improving the grounding performance of the conductive member 2. Preferably, the conductive member 2 includes one of an aluminum alloy, a copper alloy, or silver. It can also be made of a carbon conductive material, which also has the characteristics of low cost, good processing performance, and corrosion resistance.

[0043] The conductive member 2 also has a good heat dissipation function and can quickly conduct the heat energy of the photovoltaic assembly 200 to the first pressing block 11, thereby providing a certain degree of protection for the photovoltaic assembly 200 and preventing it from being damaged by overheating.

[0044] Please refer to Figure 3The conductive member 2 is a sheet-like structure, and includes a first conductive portion 21 and two second conductive portions 22 respectively arranged perpendicularly at both ends of the first conductive portion 21, and a mounting groove 201 is formed between the two second conductive portions 22 and the first conductive portion 21. A first boss portion 1111 is provided on the top of the first base portion 111, and the first boss portion 1111 is arranged in the mounting groove 201. Specifically, the first boss portion 1111 is arranged at the center of the first base portion 111, and the first boss portion 1111 is protruded from the first base portion 111 toward the direction of the second pressing block 12 to position the conductive member 2, so as to prevent the conductive member 2 from being offset on the first base portion 111, thereby affecting the conductive effect. A second boss portion 1112 is provided at the bottom of the first base portion 111. The second boss portion 1112 is arranged back to back with the first boss portion 1111. The second boss portion 1112 protrudes toward one side of the water guide groove 300. By arranging the first boss portion 1111 and the second boss portion 1112, the connection between the fastener 13 and the first base portion 111 is made more stable, thereby improving the overall structural strength.

[0045] In this embodiment, the two ends of the first conductive part 21 are respectively connected to the same end of the two second conductive parts 22. In this case, there is one first conductive part 21, and the first conductive part 21 and the two second conductive parts 22 form a "U"-shaped structure. In other embodiments, there are two first conductive parts 21, and the two first conductive parts 21 and the two second conductive parts 22 are connected end to end in sequence to form a "mouth" shape, which is not limited here. Such a configuration facilitates the installation of the conductive member 2, thereby reducing the installation cost.

[0046] Please refer to Figure 3 , a plurality of contact portions 221 are provided on the second conductive portion 22, and the contact portions 221 are arranged to protrude from the second conductive portion 22. In the first embodiment, the contact portions 221 are arranged to protrude toward one side of the photovoltaic component 200, and the contact portions 221 abut against the frame of the photovoltaic component 200, thereby improving the grounding performance of the conductive member 2. In the second embodiment, the contact portions 221 are arranged to protrude toward one side of the first base portion 111, and the contact portions 221 abut against the first base portion 111, thereby improving the grounding performance of the conductive member 2. In the third embodiment, part of the contact portions 221 are arranged to protrude toward one side of the photovoltaic component 200, and another part of the contact portions 221 are arranged to protrude toward one side of the first base portion 111, and the contact portions 221 abut against the frame of the photovoltaic component 200 and the first base portion 111, respectively, so that the grounding performance of the conductive member 2 can be improved.

[0047] Please refer to Figure 4, the first pressing block 11 has a first through hole 101 which passes through the center of the first base portion 111. The fastener 13 is threadedly connected to the first through hole 101, improving the connection stability between the fastener 13 and the first pressing block 11, and making the photovoltaic module 200 more firmly fixed on the water guide trough 300.

[0048] Specifically, the cross-section of the water guide trough 300 is generally in an "M" shape. Specifically, the water guide trough 300 includes a first main body portion 310, two first inclined portions 320 which are arranged on both sides of the first main body portion 310 and extend outwardly along the second direction D2-D2, two second inclined portions 330 which extend upwardly from the two first inclined portions 320, and two fixing portions 340 which extend downwardly from the two second inclined portions 330. The two fixing portions 340 are fixed to the top of the purlin 400 by screws 4.

[0049] Please refer to Figure 4 , the first pressing portion 112 is connected to the fixing portion 340 by screws 4. Specifically, the first pressing portion 112 includes a first bending portion 1121 which extends outwardly from the first base portion 111 along the second direction D2-D2, and second bending portions 1122 which extend downwardly from the first bending portion 1121 respectively. The first bending portion 1121 abuts against the second inclined portion 330, and the second bending portions 1122 are respectively connected to the fixing portions 340 by screws 4. Preferably, the first pressing block 11 is formed by die-casting through an integral molding process, thereby improving the overall structural strength of the first pressing block 11.

[0050] In an embodiment of the present utility model, the second pressing block 12 is generally in a "J" shape. The second pressing block 12 includes a second base portion 121 and two second pressing portions 122 arranged at opposite ends of the second base portion 121. The two second pressing portions 122 respectively abut against two adjacent photovoltaic modules 200 along the first direction D1-D1. The second base portion 121 has a second through hole 102, and the fastener 13 passes through the second through hole 102 and is threadedly connected to the first through hole 101 to fix two adjacent photovoltaic modules 200 to the top of the water guide trough 300.

[0051] Each second pressing portion 122 includes a vertical wall 1221 and a horizontal wall 1222. One end of the vertical wall 1221 is perpendicular to the edge of the second base 121 along the third direction D3-D3, and the horizontal wall 1222 is vertically arranged at the other end of the vertical wall 1221 along the second direction D2-D2. The two horizontal walls 1222 are arranged to extend in opposite directions along the second direction D2-D2. The vertical wall 1221 has a vertical surface facing the photovoltaic component 200, and the photovoltaic component 200 has a mounting surface 210 on the side facing the gap. The distance between the two vertical surfaces is less than the distance between the two mounting surfaces 210. When the second pressing block 12 is installed between two adjacent photovoltaic components 200, the second pressing block 12 can be placed in the gap, so that the second horizontal wall 1222 abuts against the top surface of the photovoltaic component 200, and the photovoltaic component 200 is fixed to the top of the water guide trough 300.

[0052] The two horizontal walls 1222 are respectively provided with a serration 12221 on one side facing the top surface of the photovoltaic component 200, and the serration 12221 abuts against the top surface of the photovoltaic component 200 to increase the friction between the horizontal wall 1222 and the top surface of the photovoltaic component 200. No displacement will occur between the photovoltaic component 200 and the second pressing block 12, thereby improving the stability of the installation.

[0053] Please refer to Figure 5 The fixing structure 100 also includes a cover plate 3, which covers the top of the second pressing block 12 to improve the waterproof performance of the second pressing block 12. The cover body includes a main body 31 and two connecting parts 32 arranged at both ends of the main body 31, and the two connecting parts 32 are respectively connected with the two second pressing parts 122 by snap-fitting. In the first embodiment, the free ends of the two connecting parts 32 are respectively provided with protrusions 321, and the two protrusions 321 are arranged face to face. The horizontal wall 1222 of the second pressing part 122 is provided with a slot 1223, and the protrusion 321 is snap-fitted with the slot 1223. This further improves the waterproof performance between the cover plate 3 and the second pressing block 12, thereby improving the service life.

[0054] In the second embodiment, the free ends of the two connecting parts 32 are respectively provided with a slot part, the two slot parts are arranged face to face, the horizontal walls 1222 of the two second pressing parts 122 are provided with a buckle part, and the slot part is buckled with the buckle part, thereby further improving the waterproof performance between the cover plate 3 and the second pressing block 12, thereby improving the service life.

[0055] In either the first or second embodiment, the connection portion 32 is connected and fixed to the horizontal wall 1222 by gluing. Preferably, the protrusion 321 is connected to the slot portion 1223 by gluing to improve the waterproof performance of the cover plate 3 after covering the second pressing block 12, and to prevent rainwater from entering between the two vertical walls 1221 through the gap between the cover plate 3 and the second pressing block 12, thereby affecting the service life of the fastener 13.

[0056] The cover plate 3 further includes two abutting portions 33, which are respectively arranged at the bottom of the body portion 31, and each abutting portion 33 is arranged one by one with each second abutting portion 122, and the abutting portion 33 abuts against the second abutting portion 122, so that the structural strength of the cover plate 3 can be improved, and deformation of the cover plate 3 can be avoided, thereby affecting the service life of the cover plate 3. Preferably, the two abutting portions 33 are symmetrically arranged along the midline of the cross section of the body portion 31, so that the two abutting portions 33 can accurately abut against the two second abutting portions 122, thereby improving the structural strength of the body portion 31, and further improving the service life of the cover plate 3.

[0057] At least one connecting portion 32 is provided with a groove portion 34, and the groove portion 34 is extended outward from the connecting portion 32 along the second direction D2-D2. The groove portion 34 includes a first recessed wall 341 and a second recessed wall 342, one end of the first recessed wall 341 is horizontally extended outward from the connecting portion 32, and the second recessed wall 342 is extended upward from the other end of the first recessed wall 341. The connecting portion 32, the first recessed wall 341, and the second recessed wall 342 form a groove. In this way, during the subsequent maintenance process, the assembler can reach into the groove with a tool to lift the second recessed wall 342, thereby driving the connecting portion 32 to separate from the first pressing portion 112. In other embodiments, the recessed portion 34 includes two recessed portions, and the two recessed portions 34 are respectively arranged on both sides of the two connecting portions 32. This is not limited here.

[0058] In summary, the utility model discloses a fixing structure 100, which is used to fix a photovoltaic module 200 on the top of a water channel 300, wherein the water channel 300 is extended along a first direction D1-D1, and a plurality of photovoltaic modules 200 are arranged at intervals along a second direction D2-D2. The fixing structure 100 includes a pressing block assembly 1 and a conductive member 2. The pressing block assembly 1 includes a first pressing block 11, a second pressing block 12, and a fastener 13. The second pressing block 12 is arranged above the first pressing block 11 along a third direction D3-D3, and the first pressing block 11 includes a first base 111 and two first pressing portions 112 arranged on opposite sides of the first bottom along the first direction D1-D1, and the two first pressing portions 112 are respectively connected to the water channel 300, and the fastener 13 passes through the second pressing block 12 and is connected to the first base 111. By arranging the conductive member 2 between the photovoltaic module 200 and the first base 111, the conductive member 2 is respectively in contact with the photovoltaic module 200 and the first base 111 on the upper and lower sides in the third direction D3-D3, thereby improving the grounding performance of the photovoltaic module 200 and reducing the installation cost.

[0059] It should be understood that the words used in the specification and claims of the present invention, such as "first", "second" and similar words, do not indicate any order, quantity or importance, but are only used to distinguish the names of features. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but indicate the existence of at least one. Unless otherwise specified, words such as "front", "rear", "upper", "lower" and similar words appearing in the present invention are only for the convenience of description and are not limited to a specific position or a spatial orientation. Words such as "include" or "comprise" are an open-ended expression, meaning that the elements appearing before "include" or "comprise" include the elements appearing after "include" or "comprise" and their equivalents, which does not exclude that the elements appearing before "include" or "comprise" may also include other elements. If "several" appears in the present invention, it means two or more.

[0060] The above embodiments are only used to illustrate the present invention but not to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technical personnel in the relevant technical field. For example, for the directional description of "front", "back", "left", "right", "up", "down", etc., although this specification has been described in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or replace the present invention with equivalents, and all technical solutions and improvements that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A fixing structure, used for fixing a photovoltaic module (200) on the top of a water channel (300), wherein the water channel (300) is extended along a first direction, and a plurality of photovoltaic modules (200) are arranged at intervals along a second direction, characterized in that: include: A pressing block assembly (1) for fixing two adjacent photovoltaic assemblies (200) on the top of the water guide groove (300), the pressing block assembly (1) comprising a first pressing block (11), a second pressing block (12) and a fastener (13), the first pressing block (11) being arranged on the top of the water guide groove (300), the second pressing block (12) being arranged above the first pressing block (11) along a third direction, the first pressing block (11) comprising a first base (111) and two first pressing portions (112) arranged on opposite sides of the first base (111) along the first direction, the two first pressing portions (112) being respectively connected to the water guide groove (300), and the fastener (13) passing through the second pressing block (12) and connected to the first base (111); The conductive member (2) is arranged between the photovoltaic component (200) and the first base (111), and the conductive member (2) abuts against the photovoltaic component (200) and the first base (111) at the upper and lower sides in the third direction respectively.

2. The fixing structure according to claim 1, characterized in that: The conductive member (2) is in a sheet-like structure, comprising a first conductive portion (21) and two second conductive portions (22) respectively arranged at two ends of the first conductive portion (21), a mounting groove (201) being formed between the two second conductive portions (22) and the first conductive portion (21), a first boss portion (1111) being arranged at the top center of the first base portion (111), and the first boss portion (1111) being arranged in the mounting groove (201).

3. The fixing structure according to claim 2, characterized in that: Two ends of the first conductive part (21) are respectively vertically connected to the same end of two second conductive parts (22), and the first conductive part (21) and the two second conductive parts (22) form a "U"-shaped structure.

4. The fixing structure according to claim 2, characterized in that: A plurality of contact portions (221) are provided on the second conductive portion (22); the contact portions (221) are arranged to protrude from the second conductive portion (22); the contact portions (221) abut against a frame of the photovoltaic component (200), and / or the contact portions (221) abut against the first base portion (111).

5. The fixing structure according to claim 1, characterized in that: The conductive member (2) is made of a metal material or a carbon conductive material.

6. The fixing structure according to claim 2, characterized in that: The first base (111) has a first through hole (101), the first through hole (101) passes through the first base (111) and the first boss portion (1111), and the fastener (13) is threadedly connected to the first through hole (101).

7. The fixing structure according to claim 6, characterized in that: The second pressing block (12) comprises a second base (121) and two second pressing portions (122) arranged at opposite ends of the second base (121), the two second pressing portions (122) respectively abut against two adjacent photovoltaic components (200) along a first direction, the second base (121) has a second through hole (102), and the fastener (13) passes through the second through hole (102) and is threadedly connected to the first through hole (101).

8. The fixing structure according to claim 7, characterized in that: The fixing structure further comprises a cover plate (3), wherein the cover plate (3) covers the top of the second pressing block (12).

9. The fixing structure according to claim 8, characterized in that: The cover plate (3) comprises a main body portion (31) and two connecting portions (32) arranged at the edge of the main body portion (31), and the two connecting portions (32) are respectively snap-connected to the two second pressing portions (122).

10. A photovoltaic carport, characterized in that: The photovoltaic carport comprises a fixed structure as described in any one of claims 1 to 9, and the photovoltaic carport also comprises columns and a plurality of purlins (400) and a plurality of water guide grooves (300) arranged on the top of the columns, the purlins (400) extending along the second direction, the plurality of purlins (400) being arranged at intervals along the first direction, the water guide grooves (300) extending along the first direction, the plurality of water guide grooves (300) being arranged at intervals along the second direction on the top of the plurality of purlins (400), and the fixed structure being configured to fix the photovoltaic module (200) on the top of the water guide groove (300).

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