Waterproof photovoltaic system
By designing the combination of frames and sealant strips in the photovoltaic system, the problems of large amount of steel and poor economic performance in traditional photovoltaic systems are solved, and efficient waterproofing effect and economic improvement are achieved.
Patent Information
- Application Number
- CN202420306447.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-19
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-02-19
AI Technical Summary
Traditional photovoltaic systems use large amounts of steel and poor economicality, which cannot effectively solve the waterproofing problem.
A waterproof photovoltaic system is designed to achieve sealing and waterproofing between the top and long sides of the photovoltaic module by setting a frame at the long side of the photovoltaic module and connecting it with the purlin through a fastener, combined with the use of the first sealing strip.
The system does not need to install a main sink and a secondary sink, which avoids the increase in the amount of steel used, saves installation and material costs, improves the economy of the photovoltaic system, and can absorb the displacement between photovoltaic modules and adapt to shaking.
Smart Images
Figure CN222674235U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photovoltaic systems, in particular to a waterproof photovoltaic system. Background Art
[0002] In recent years, with the vigorous promotion of photovoltaic power generation technology, in order to improve the efficiency of land use, photovoltaic projects such as fishery photovoltaic complementarity, agricultural photovoltaic complementarity, and mountain photovoltaic have emerged. The number and scale of photovoltaic projects are getting larger and larger, and the application demand of various photovoltaic systems is also increasing. Traditional photovoltaic systems generally do not consider waterproof requirements. Some photovoltaic systems that consider waterproof requirements generally set up main water tanks and auxiliary water tanks under the photovoltaic modules. The main water tank is connected to the purlins under the photovoltaic modules, and the auxiliary water tank is overlapped on the main water tank. The main and auxiliary water tanks are generally made of steel or aluminum alloy, which increases the amount of steel used and reduces the economy of the photovoltaic support system. Utility Model Content
[0003] In view of this, the utility model provides a waterproof photovoltaic system to solve the problem of large steel consumption and poor economy of traditional photovoltaic systems.
[0004] The utility model provides a waterproof photovoltaic system, comprising photovoltaic components, purlins and a first sealing strip; the long sides of the photovoltaic components are each provided with a frame; the purlins are detachably connected to the frame by fasteners, and in the width direction of the photovoltaic components, multiple groups of the photovoltaic components are sequentially spaced and connected to form a photovoltaic structure by the purlins; the first sealing strip comprises a first flange and a first web, the first flanges are respectively provided on both sides of one end of the first web, the first web is sealed and connected between two adjacent groups of the frame, and the two first flanges are respectively sealed and connected to the tops of the two adjacent groups of the frame.
[0005] Beneficial effects: The setting of the first sealing strip can achieve sealing and waterproofing between the top and long sides of the photovoltaic module. There is no need to set the main water tank and the auxiliary water tank under the photovoltaic module, which avoids the increase in steel consumption caused by the main water tank and the auxiliary water tank, saves installation and material costs, and improves the economy of the photovoltaic system; because the first sealing strip is made of flexible materials such as rubber, it not only reduces material costs but also makes installation faster. When there is relative displacement between photovoltaic modules under wind load, the first sealing strip can also absorb the displacement and adapt to the shaking between photovoltaic modules. The long side of the photovoltaic module is directly and detachably connected to the purlin through the frame and fasteners, which saves the use of aluminum alloy blocks in traditional connection methods, saves materials, makes installation more convenient and faster, and saves construction costs.
[0006] In an optional embodiment, the two sides of the first web are respectively tightly fitted with the two adjacent groups of the frame and are sealed and bonded by a sealant; the first flange is tightly fitted with the top of the frame and is sealed and bonded by a sealant.
[0007] Beneficial effect: The sealing effects of the first flange and the first web are both good.
[0008] In an optional embodiment, one end of the first flange away from the first web is bonded to the top of the photovoltaic component by means of a sealant.
[0009] In an optional embodiment, the thickness δ of the first flange satisfies 5mm≤δ≤10mm.
[0010] In an optional embodiment, it further comprises a second sealing strip, wherein the second sealing strip comprises a second flange and a second web, and the second flange is respectively disposed on both sides of one end of the second web;
[0011] In the length direction of the photovoltaic component, multiple groups of photovoltaic structures are arranged in sequence and at intervals, and the short sides of the photovoltaic components of two adjacent groups of the photovoltaic structures are arranged one by one. The second sealing strip is arranged between the two corresponding short sides of the two adjacent groups of the photovoltaic structures, and the second web is sealed between the two adjacent short sides; the two second flanges are respectively sealed at the tops of the two adjacent short sides.
[0012] In an optional embodiment, the two sides of the second web are respectively tightly fitted with the side portions of the two adjacent short sides and bonded by a sealant;
[0013] The two second flanges are respectively tightly fitted to the tops of the two adjacent short sides and are bonded by a sealant.
[0014] In an optional implementation, the thickness of the second flange is the sum of the thickness of the first flange and the thickness of the frame at the top of the photovoltaic component.
[0015] In an optional embodiment, a third sealing strip is further included, the third sealing strip includes a third flange, a third web and a fourth web, the third web and the fourth web are cross-arranged, the third flange is connected to one end of the third web and the fourth web; the third sealing strip is arranged between four adjacent groups of photovoltaic components of two adjacent groups of photovoltaic structures; the third flange is sealed to the top of the frame of four adjacent groups of photovoltaic components, the third web is sealed to the adjacent frames of two adjacent groups of photovoltaic structures, and the fourth web is sealed to the adjacent short sides of two adjacent groups of photovoltaic structures;
[0016] In the length direction of the photovoltaic component, both sides of the third flange are respectively sealed and connected with the first flanges of the two first sealing strips; in the width direction of the photovoltaic component, both sides of the third flange are respectively sealed and connected with the second flanges of the two second sealing strips.
[0017] In an optional embodiment, two sides of the third web are respectively tightly fitted with two adjacent groups of the frame and bonded by a sealant;
[0018] The two sides of the fourth web are respectively tightly fitted with the two adjacent groups of short sides and bonded with a sealant;
[0019] The third flange is tightly fitted to the tops of the frames of the four adjacent groups of photovoltaic modules and bonded with a sealant;
[0020] The third flange is tightly fitted with the first flanges of the two first sealing strips on both sides in the length direction and bonded with sealant; the third flange is tightly fitted with the second flanges of the two second sealing strips on both sides in the width direction and bonded with sealant.
[0021] In an optional embodiment, the third flange is a square plate structure, the sum of the widths of the two first flanges is consistent with the width of the third flange, and the sum of the widths of the two second flanges is consistent with the width of the third flange. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0023] Figure 1 A schematic diagram of a waterproof photovoltaic system according to an embodiment of the utility model;
[0024] Figure 2 A top view of a waterproof photovoltaic system according to an embodiment of the utility model;
[0025] Figure 3 It is a side view of a waterproof photovoltaic system (at the third sealing strip) according to an embodiment of the utility model;
[0026] Figure 4 for Figure 3 A local enlarged schematic diagram in FIG.
[0027] Figure 5 It is a side view of a waterproof photovoltaic system (before sealing) according to an embodiment of the utility model;
[0028] Figure 6 for Figure 5 A local enlarged schematic diagram in FIG.
[0029] Figure 7 A schematic diagram of a photovoltaic module of a waterproof photovoltaic system according to an embodiment of the utility model;
[0030] Figure 8 A schematic diagram of a first sealing strip of a waterproof photovoltaic system according to an embodiment of the utility model;
[0031] Fig. 9 A schematic diagram of a second sealing strip of a waterproof photovoltaic system according to an embodiment of the utility model;
[0032] Fig.10 This is a schematic diagram of a third sealing strip of a waterproof photovoltaic system according to an embodiment of the utility model.
[0033] Description of reference numerals:
[0034] 1. Photovoltaic module; 11. Frame; 12. Fastener; 13. Short side; 2. Purlin; 3. First sealing strip; 31. First flange; 32. First web; 4. Second sealing strip; 41. Second flange; 42. Second web; 5. Third sealing strip; 51. Third flange; 52. Third web; 53. Fourth web. DETAILED DESCRIPTION
[0035] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0036] Combine the following Figures 1 to 10 , describing an embodiment of the utility model.
[0037] According to an embodiment of the utility model, a waterproof photovoltaic system is provided, comprising a photovoltaic module 1, a purlin 2 and a first sealing strip 3; a frame 11 is provided at the long sides of the photovoltaic module 1; the purlin 2 and the frame 11 are detachably connected by fasteners 12, and in the width direction of the photovoltaic module 1, multiple groups of photovoltaic modules 1 are spaced in sequence and connected into a photovoltaic structure by the purlin 2; the first sealing strip 3 includes a first flange 31 and a first web 32, and the first flanges 31 are respectively provided on both sides of one end of the first web 32, and the first web 32 is sealed between two adjacent groups of frame 11, and the two first flanges 31 are respectively sealed at the top of the two adjacent groups of frame 11.
[0038] The first sealing strip 3 can achieve waterproof sealing between the top and long sides of the photovoltaic module 1. There is no need to set the main water tank and the auxiliary water tank under the photovoltaic module 1, which avoids the increase in steel consumption caused by the main water tank and the auxiliary water tank, saves installation and material costs, and improves the economy of the photovoltaic system. Since the first sealing strip 3 is made of flexible materials such as rubber, it not only reduces material costs but also makes installation faster. When there is relative displacement between the photovoltaic modules 1 under the action of wind load, the first sealing strip 3 can also absorb the displacement and adapt to the shaking between the photovoltaic modules 1. The long side of the photovoltaic module 1 is directly and detachably connected to the purlin 2 through the frame 11 and the fastener 12, which saves the use of aluminum alloy blocks in the traditional connection method, saves materials, makes installation more convenient and faster, and saves construction costs.
[0039] In one embodiment, the two sides of the first web 32 are respectively tightly fitted with the two adjacent groups of frames 11, and are sealed and bonded by a sealant, so that the sealing effect between the two sides of the first web 32 and the frame 11 is good, and the connection between them is relatively stable. The first flange 31 is tightly fitted with the top of the frame 11 and is sealed and bonded by a sealant. The first flange 31 covers the top of the frame 11 and has a good sealing effect with the top of the frame 11, and the connection is relatively stable. Overall, the connection position and connection relationship between the first web 32 and the first flange 31 can prevent the first sealing strip 3 from falling out, curling or misalignment when absorbing the displacement of the photovoltaic module 1, thereby preventing accidents such as the first sealing strip 3 from affecting the sealing effect.
[0040] In a specific embodiment, the frame 11 can be an E-shaped frame 11 with two mounting grooves, the long side of the photovoltaic module 1 is connected in one mounting groove, and the bottom of the frame 11 is detachably connected to the purlin 2 by fasteners 12 such as bolts and screws. The purlin 2 can be made of cold-bent thin-walled steel such as C-shaped and Z-shaped. The photovoltaic module 1 is a double-glass module, that is, the battery cell is sandwiched between two pieces of glass, and an aluminum alloy frame 11 is set on the long side. Two bolt holes are set at the bottom of each frame 11 for connection with the purlin 2. The edge of the short side 13 of the photovoltaic module 1 is not provided with a frame 11, and the edges of the long side and short side 13 of the photovoltaic module 1 are both at a certain distance from the battery cell to prevent the frame 11 and the first sealing strip 3 from blocking the battery cell and affecting the power generation efficiency.
[0041] In one embodiment, one end of the first flange 31 away from the first web 32 is bonded to the top of the photovoltaic component 1 by means of a sealant.
[0042] The first flange 31 is bonded to the top of the photovoltaic module 1 by means of sealant, which can further enhance the sealing effect of the first sealing strip 3 at the top and further enhance the connection stability of the first sealing strip 3 .
[0043] In one embodiment, the thickness δ of the first flange 31 satisfies 5 mm ≤ δ ≤ 10 mm.
[0044] The first flange 31 is relatively thin, which can ensure the strength of the first flange 31 while preventing the first flange 31 from protruding too much from the top.
[0045] In a specific embodiment, the thickness δ of the first flange 31 is 5 mm. In another specific embodiment, the thickness δ of the first flange 31 is 10 mm.
[0046] In one embodiment, a second sealing strip 4 is also included, and the second sealing strip 4 includes a second flange 41 and a second web 42. The second flanges 41 are respectively provided on both sides of one end of the second web 42; in the length direction of the photovoltaic component 1, a plurality of groups of photovoltaic structures are sequentially arranged at intervals, and the short sides 13 of the photovoltaic components 1 of two adjacent groups of photovoltaic structures are arranged one by one, and the second sealing strip 4 is arranged between the two corresponding short sides 13 of the two adjacent groups of photovoltaic structures, and the second web 42 is sealed and connected between the two adjacent short sides 13; the two second flanges 41 are respectively sealed and connected to the tops of the two adjacent short sides 13.
[0047] The setting of the second sealing strip 4 can achieve sealing and waterproofing between the top of the photovoltaic structure and the short side 13 of the photovoltaic structure. There is no need to set a main water tank and a secondary water tank under the photovoltaic structure, which avoids the increase in steel consumption caused by the main water tank and the secondary water tank, saves installation and material costs, and improves the economy of the photovoltaic system. Since the second sealing strip 4 is made of flexible materials such as rubber, it not only reduces material costs but also makes installation faster. When relative displacement occurs between the photovoltaic structures under the action of wind load, the second sealing strip 4 can also absorb the displacement and adapt to the shaking between the photovoltaic structures.
[0048] In one embodiment, the two sides of the second web 42 are respectively tightly fitted with the side parts of the two adjacent short sides 13 and bonded by sealant, so that the sealing effect between the two sides of the second web 42 and the short sides 13 is good, and the connection between them is relatively stable; the two second flanges 41 are respectively tightly fitted with the tops of the two adjacent short sides 13 and bonded by sealant, and the second flanges 41 cover the tops of the short sides 13 and have a good sealing effect with the tops of the short sides 13, and the connection is also relatively stable. Overall, the connection position and connection relationship between the second flange 41 and the second web 42 can prevent the second sealing strip 4 from falling out, curling or misalignment when absorbing the displacement between the photovoltaic structures, thereby preventing accidents such as affecting the sealing effect.
[0049] In one embodiment, the thickness of the second flange 41 is the sum of the thickness of the first flange 31 and the thickness of the frame 11 at the top of the photovoltaic component 1 , so that the upper surface of the second flange 41 is flush with the upper surface of the first flange 31 .
[0050] In one embodiment, a third sealing strip 5 is also included, and the third sealing strip 5 includes a third flange 51, a third web 52 and a fourth web 53. The third web 52 and the fourth web 53 are cross-arranged, and the third flange 51 is connected to one end of the third web 52 and the fourth web 53; a third sealing strip 5 is arranged between four adjacent groups of photovoltaic components 1 of two adjacent groups of photovoltaic structures; the third flange 51 is sealed and connected to the top of the frame 11 of the four adjacent groups of photovoltaic components 1, the third web 52 is sealed and connected between the adjacent frames 11 of the two adjacent groups of photovoltaic structures, and the fourth web 53 is sealed and connected between the adjacent short sides 13 of the two adjacent groups of photovoltaic structures; in the length direction of the photovoltaic component 1, the two sides of the third flange 51 are respectively sealed and connected to the first flanges 31 of the two first sealing strips 3; in the width direction of the photovoltaic component 1, the two sides of the third flange 51 are respectively sealed and connected to the second flanges 41 of the two second sealing strips 4.
[0051] The third sealing strip 5 can achieve waterproof sealing between and on the top of the four photovoltaic modules 1 of the two photovoltaic structures. It is not necessary to set the main water tank and the auxiliary water tank under the photovoltaic modules 1, which avoids the increase in the amount of steel used due to the main water tank and the auxiliary water tank, saves installation and material costs, and improves the economy of the photovoltaic system. Since the third sealing strip 5 is made of flexible materials such as rubber, it not only reduces material costs but also makes installation faster. When relative displacement occurs between the four photovoltaic modules 1 under the action of wind load, the third sealing strip 5 can also absorb the displacement and adapt to the shaking between the photovoltaic modules 1. The third sealing strip can also be sealed and docked with the first sealing strip and the second sealing strip to ensure the sealing effect between the third sealing strip and the first sealing strip and the second sealing strip.
[0052] Preferably, the thickness of the third sealing strip is consistent with the thickness of the first sealing strip, ensuring that the upper surfaces of the first sealing strip, the second sealing strip and the third sealing strip are all flush.
[0053] In one embodiment, the two sides of the third web 52 are respectively tightly fitted with the two adjacent groups of frames 11, and are bonded by sealant, so that the sealing effect and connection stability between the third web 52 and the frame 11 are good. The two sides of the fourth web 53 are respectively tightly fitted with the two adjacent groups of short sides 13, and are bonded by sealant, so that the sealing effect and connection stability between the fourth web 53 and the short sides 13 are good. The third flange 51 is tightly fitted with the top of the frame 11 of the four adjacent groups of photovoltaic components 1, and is bonded by sealant, so that the sealing effect and connection stability between the third flange 51 and the top of the frame 11 of the four groups of photovoltaic components 1 are good. The third flange 51 is tightly fitted with the first flanges 31 of the two first sealing strips 3 on both sides in the length direction, and is bonded by sealant, so that the sealing effect and connection stability between the third flange 51 and the first flange 31 of the first sealing strip 3 are good. The third flange 51 is tightly fitted with the second flanges 41 of the two second sealing strips 4 on both sides in the width direction and bonded by sealant, so that the sealing effect and connection stability between the third flange 51 and the second flange 41 of the second sealing strip 4 are good.
[0054] In one embodiment, the third flange 51 is a square plate structure, the sum of the widths of the two first flanges 31 is consistent with the width of the third flange 51 , and the sum of the widths of the two second flanges 41 is consistent with the width of the third flange 51 .
[0055] The third flange 51 , the first flange 31 and the second flange 41 are relatively regular as a whole, thus ensuring the aesthetic appearance of the surface of the waterproof photovoltaic system.
[0056] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.
Claims
1. A waterproof photovoltaic system, characterized in that: include: The photovoltaic module (1) is provided with a frame (11) at each long side; A purlin (2) is detachably connected to the frame (11) via a fastener (12); in the width direction of the photovoltaic module (1), a plurality of groups of the photovoltaic modules (1) are sequentially spaced and connected to form a photovoltaic structure via the purlin (2); The first sealing strip (3) comprises a first flange (31) and a first web (32), wherein the first flange (31) is respectively provided on both sides of one end of the first web (32), the first web (32) is sealed between two adjacent groups of the frame (11), and the two first flanges (31) are respectively sealed on the tops of the two adjacent groups of the frame (11).
2. The waterproof photovoltaic system according to claim 1, characterized in that: The two sides of the first web (32) are respectively tightly fitted with the two adjacent groups of frames (11) and are sealed and bonded by a sealant; The first flange (31) is tightly fitted to the top of the frame (11) and is sealed and bonded together by a sealant.
3. The waterproof photovoltaic system according to claim 1, characterized in that: One end of the first flange (31) away from the first web (32) is bonded to the top of the photovoltaic module (1) by means of a sealant.
4. The waterproof photovoltaic system according to claim 1, characterized in that: The thickness δ of the first flange (31) satisfies 5mm≤δ≤10mm.
5. The waterproof photovoltaic system according to any one of claims 1 to 4, characterized in that: It also includes a second sealing strip (4), wherein the second sealing strip (4) includes a second flange (41) and a second web (42), and the second flange (41) is respectively provided on both sides of one end of the second web (42); In the length direction of the photovoltaic assembly (1), a plurality of groups of photovoltaic structures are arranged in sequence and at intervals, and the short sides (13) of the photovoltaic assemblies (1) of two adjacent groups of photovoltaic structures are arranged one by one, the second sealing strip (4) is arranged between the two corresponding short sides (13) of the two adjacent groups of photovoltaic structures, the second web (42) is sealed and connected between the two adjacent short sides (13); and the two second flanges (41) are respectively sealed and connected to the tops of the two adjacent short sides (13).
6. The waterproof photovoltaic system according to claim 5, characterized in that: The two sides of the second web (42) are respectively tightly fitted with the side portions of the two adjacent short sides (13) and are bonded by a sealant; The two second flanges (41) are respectively tightly fitted to the tops of the two adjacent short sides (13) and are bonded by a sealant.
7. The waterproof photovoltaic system according to claim 6, characterized in that: The thickness of the second flange (41) is the sum of the thickness of the first flange (31) and the thickness of the frame (11) at the top of the photovoltaic module (1).
8. The waterproof photovoltaic system according to claim 5, characterized in that: The third sealing strip (5) further comprises a third sealing strip (5), wherein the third sealing strip (5) comprises a third flange (51), a third web (52) and a fourth web (53), wherein the third web (52) and the fourth web (53) are arranged crosswise, and the third flange (51) is connected to one end of the third web (52) and the fourth web (53); the third sealing strip (55) is arranged between four adjacent groups of photovoltaic components (1) of two adjacent groups of photovoltaic structures; the third flange (51) is sealed to the top of the frame (11) of the four adjacent groups of photovoltaic components (1), the third web (52) is sealed to the adjacent frames (11) of the two adjacent groups of photovoltaic structures, and the fourth web (53) is sealed to the adjacent short sides (13) of the two adjacent groups of photovoltaic structures; In the length direction of the photovoltaic module (1), the two sides of the third flange (51) are respectively sealed and butted with the first flanges (31) of the two first sealing strips (3); in the width direction of the photovoltaic module (1), the two sides of the third flange (51) are respectively sealed and butted with the second flanges (41) of the two second sealing strips (4).
9. The waterproof photovoltaic system according to claim 8, characterized in that: The two sides of the third web (52) are respectively tightly fitted with the two adjacent groups of frame frames (11) and bonded by a sealant; The two sides of the fourth web (53) are respectively tightly fitted with the two adjacent groups of short sides (13) and bonded by a sealant; The third flange (51) is tightly fitted to the top of the frame (11) of the four adjacent groups of photovoltaic modules (1) and bonded by a sealant; The third flange (51) is tightly fitted with the first flanges (31) of the two first sealing strips (3) on both sides in the length direction and bonded by a sealant; the third flange (51) is tightly fitted with the second flanges (41) of the two second sealing strips (4) on both sides in the width direction and bonded by a sealant.
10. The waterproof photovoltaic system according to claim 8, characterized in that: The third flange (51) is a square plate-shaped structure, the sum of the widths of the two first flanges (31) is consistent with the width of the third flange (51), and the sum of the widths of the two second flanges (41) is consistent with the width of the third flange (51).