A compact and a roof photovoltaic system containing the same

Abstract

The present invention discloses a pressing block and a roof photovoltaic system including the same, wherein the pressing block comprises: a pressing plate; and two side plates arranged on opposite sides of the pressing plate; the two side plates abut against the same surface of the pressing plate; the pressing plate and the two side plates are jointly arranged to form a slot; the outer side wall of the side plate away from the slot is provided with a pressing piece for pressing the photovoltaic module; the outer side wall of the side plate away from the slot is provided with a clamping part for clamping the photovoltaic module; the pressing piece is arranged near the bottom of the slot, and the clamping part is arranged near the opening of the slot. The present invention does not need to destroy the upper surface of the photovoltaic module by perforating, thus avoiding water leakage, and also avoiding the phenomenon that the photovoltaic module itself fails due to rainwater entering due to perforation; the construction cost and later maintenance cost of the present invention are reduced, and the present invention is firm and reliable, and has excellent wind resistance.

Description

Technical Field

[0001] The invention relates to the technical field of roof photovoltaics, in particular to a pressing block and a roof photovoltaic system comprising the pressing block. Background Art

[0002] In modern society, people are pursuing a more comfortable building environment, which leads to an increasing energy consumption of building heating and air conditioning. In developed countries, building energy consumption has accounted for 30% to 40% of the country's total energy consumption, which has a certain restrictive effect on economic development. Therefore, Building Integrated PV (Photovoltaic) (BIPV) came into being.

[0003] The photovoltaic modules in the existing rooftop photovoltaic system are generally fixed to the roof of the building by screws. However, when installing the photovoltaic modules on the roof of the building, due to processing errors or substandard construction, water leakage is likely to occur at the screws that fasten the module blocks. In addition, the impact of the screws on the photovoltaic modules and the oxidation and rust of the screws due to immersion in water during use are not conducive to the stability and firmness of the photovoltaic system, thereby reducing the service life of the photovoltaic system and greatly increasing the maintenance cost of the photovoltaic system. Therefore, those skilled in the art are in urgent need of solving the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a pressing block and a rooftop photovoltaic system comprising the same. The present invention does not need to damage the upper surface of the photovoltaic module due to perforation as in the prior art, thus avoiding water leakage due to perforation, and also avoiding the phenomenon that the photovoltaic module itself fails due to rainwater entering due to perforation; the construction cost and subsequent maintenance cost of the present invention are greatly reduced, and the present invention is firm and reliable, and the rooftop photovoltaic system has excellent wind resistance.

[0005] The technical solution provided by the present invention is as follows:

[0006] A briquette comprising:

[0007] A pressure plate; and two side plates arranged on opposite sides of the pressure plate; the two side plates abut against the same surface of the pressure plate; the pressure plate and the two side plates jointly surround a slot; the outer wall of the side plate away from the slot is provided with a pressure piece for pressing the photovoltaic component; the outer wall of the side plate away from the slot is provided with a clamping portion for clamping the photovoltaic component; the pressure piece is arranged close to the bottom of the slot, and the clamping portion is arranged close to the opening of the slot.

[0008] In the present technical scheme, the photovoltaic assembly is fixed by pressing the pressing piece of the pressing block against the photovoltaic assembly and the clamping part of the pressing block clamps the photovoltaic assembly, and the pressing block is clamped with the supporting structure for supporting the photovoltaic assembly, thereby achieving a fixed connection between the photovoltaic assembly and the supporting structure, avoiding the connection between the photovoltaic assembly and the supporting structure by punching holes in the pressing block through connecting parts (such as screws, etc.), avoiding water leakage at the connecting parts, and avoiding oxidation and rusting at the perforated parts due to immersion in rainwater, which may cause the photovoltaic assembly to be loosely fixed and the high maintenance cost caused later. More preferably, the pressing piece realizes the pressing and fixing of the photovoltaic module from the upper surface of the photovoltaic module, and the clamping part realizes the fixing of the photovoltaic module from the bottom, which effectively ensures the fixation of the photovoltaic module, ensures the wind resistance of the roof photovoltaic system, and avoids the adverse effects such as warping and displacement of the photovoltaic module; more preferably, the present invention does not need to damage the upper surface of the photovoltaic module due to perforation like the prior art, thus avoiding water leakage caused by perforation, and also avoids the phenomenon that the photovoltaic module itself fails due to rainwater entering due to perforation; the construction cost and subsequent maintenance cost of the present invention are greatly reduced, and it is firm and reliable, and the roof photovoltaic system has excellent wind resistance.

[0009] Further preferably, the clamping portion pierces the metal frame of the photovoltaic component to achieve contact connection between the clamping portion and the metal frame.

[0010] In the technical solution, the electrical connection between the metal frame, the pressing block and the supporting structure is achieved by piercing the metal frame of the photovoltaic module through the pressing block, and the safety requirement that the frame of the photovoltaic module must be grounded is achieved by grounding the supporting structure, thereby avoiding the need to ground each photovoltaic module in the prior art, greatly reducing the grounding complexity of the rooftop photovoltaic system, reducing the cost of grounding wires, fastening materials and on-site construction, and greatly simplifying the difficulty and process of building the rooftop photovoltaic system.

[0011] Further preferably, a card is provided on the inner side of the side plate close to the card slot; the card is arranged at an angle to the side plate.

[0012] In this technical solution, the connection tightness and reliability of the pressing block and the supporting structure are further reinforced by the card, which greatly improves the wind resistance of the roof photovoltaic system.

[0013] Further preferably, a limiting portion is provided at the end of the card away from the side panel; and / or the card is formed by bending a portion of the side panel toward the card slot, and the end of the card away from the side panel is arranged close to the bottom of the card slot.

[0014] In this technical solution, the tightness and reliability of the connection between the pressing block and the supporting structure are increased by the limiting part, which greatly improves the wind resistance of the roof photovoltaic system. More preferably, the card is set as a part of the side plate, thereby reducing the weight and structural complexity of the pressing block, and reducing the manufacturing cost and construction cost of the present invention.

[0015] Further preferably, the pressing sheet is an elastic member; and / or the pressing block is provided with a plurality of the pressing sheets; and / or the side plate is provided with through holes at positions corresponding to the pressing sheets.

[0016] In the technical solution, the pressing piece is set as an elastic member so that the contact between the pressing piece and the photovoltaic module becomes a flexible contact, which improves the tolerance of the processing error and the installation error of the present invention and ensures the flatness of the photovoltaic module installation. More preferably, by setting a plurality of pressing pieces, the tightness and reliability of the pressing block pressing the photovoltaic module are improved. More preferably, the weight of the pressing block is greatly reduced by setting the through hole, saving the manufacturing cost of the pressing block.

[0017] The present invention also discloses a rooftop photovoltaic system, comprising:

[0018] A compact, several photovoltaic modules and a supporting structure;

[0019] The pressing block comprises a pressing plate; and two side plates arranged on opposite sides of the pressing plate; the two side plates abut against the same surface of the pressing plate; the pressing plate and the two side plates are jointly arranged to form a slot; the outer side wall of the side plate away from the slot is provided with a pressing piece for pressing the photovoltaic component; the outer side wall of the side plate away from the slot is provided with a clamping portion for clamping the photovoltaic component; the pressing piece is arranged close to the bottom of the slot, and the clamping portion is arranged close to the opening of the slot;

[0020] The supporting structure extends along the slope and is laid on the roof at intervals, and the photovoltaic components are arranged on the first supporting parts of two adjacent supporting structures; the card slot is clamped on the middle supporting part of the supporting structure, so that the pressing sheet is pressed on the upper surface of the photovoltaic component, and the clamping part clamps the photovoltaic component.

[0021] In the present technical scheme, the photovoltaic assembly is fixed by pressing the pressing piece of the pressing block against the photovoltaic assembly and the clamping part of the pressing block clamping the photovoltaic assembly. In addition, the pressing block is clamped with the supporting structure to achieve a fixed connection between the photovoltaic assembly and the supporting structure, avoiding the connection between the photovoltaic assembly and the supporting structure by punching holes in the pressing block through connecting parts (such as screws, etc.), avoiding water leakage at the connecting parts, and avoiding oxidation and rusting at the perforated parts due to immersion in rainwater, which may cause the photovoltaic assembly to be loosely fixed and the high maintenance cost caused later. More preferably, the pressing piece realizes the pressing and fixing of the photovoltaic module from the upper surface of the photovoltaic module, and the clamping part realizes the fixing of the photovoltaic module from the bottom, which effectively ensures the fixation of the photovoltaic module, ensures the wind resistance of the roof photovoltaic system, and avoids the adverse effects such as warping and displacement of the photovoltaic module; more preferably, the present invention does not need to damage the upper surface of the photovoltaic module due to perforation like the prior art, thus avoiding water leakage caused by perforation, and also avoids the phenomenon that the photovoltaic module itself fails due to rainwater entering due to perforation; the construction cost and subsequent maintenance cost of the present invention are greatly reduced, and it is firm and reliable, and the roof photovoltaic system has excellent wind resistance.

[0022] Further preferably, a card is provided on the inner side of the side panel close to the card slot; the card is arranged at an angle to the side panel; the cross-sectional shape of the support structure is a convex structure, including an integrally formed left support portion, a middle support portion and a right support portion; the cross-sectional shape of the middle support portion is an inverted U-shaped structure, including a first side, a second side and a third side connected in sequence, and the second side forms a closed end of the middle support portion; the outer side walls of the first side and the third side are provided with a card slot for clamping the card; the left support portion and the right support portion form the first supporting portion.

[0023] In this technical solution, the connection tightness and reliability between the pressure block and the support structure are further reinforced by the card, which greatly improves the wind resistance of the roof photovoltaic system. More preferably, by setting the cross-sectional structure of the support structure to be bilaterally symmetrical, the stress condition of the support structure is improved, and the stability and firmness of the photovoltaic modules arranged on both sides of the support structure are improved.

[0024] Further preferably, it further comprises a water guiding structure, wherein the water guiding structure comprises a longitudinal water guiding plate extending along the slope, and the longitudinal water guiding plate is provided with a water guiding groove at the joint of the photovoltaic components arranged on both sides thereof.

[0025] In this technical solution, the rainwater leaking from the joints of the photovoltaic modules is received by the water-conducting structure, thereby avoiding water leakage in the roof photovoltaic system and ensuring indoor dryness and comfort.

[0026] Further preferably, the water guide structure also includes a transverse water guide plate extending along a first direction, the first direction being perpendicular to the downslope direction; the transverse water guide plate is arranged below the contact point of two adjacent photovoltaic components, and the transverse water guide plate is communicated with the longitudinal water guide plate; and / or the supporting structure is the longitudinal water guide plate.

[0027] In the present technical solution, the setting of the transverse water guide plate effectively avoids the occurrence of water leakage due to the existence of installation gaps between the photovoltaic components arranged along the first direction. The transverse water guide plate collects rainwater between the photovoltaic components arranged along the first direction, and then guides it out through the longitudinal water guide plate, ensuring that the roof photovoltaic system is leak-free.

[0028] In this technical solution, the photovoltaic components are supported by longitudinal water guide plates, so that the longitudinal water guide plates can integrate water, drain, guide water and bear weight, which greatly simplifies the construction structure, steps and time of this BIPV, and then simplifies the construction process, ensures the construction period, and at the same time reduces the construction cost, greatly improving the cost-effectiveness of this BIPV.

[0029] Further preferably, the clamping portion pierces the metal frame of the photovoltaic component to achieve contact connection between the clamping portion and the metal frame; so that the metal frame, the pressure block and the supporting structure are electrically connected; the supporting structure is grounded; and / or the pressure sheet is an elastic member; and / or the pressure block is provided with a plurality of the pressure sheets; and / or the side panel is provided with through holes at positions corresponding to the pressure sheets; and / or a longitudinal sealing strip is provided between the photovoltaic component and the first supporting portion; and / or a transverse sealing strip is clamped at the contact point of two adjacent photovoltaic components along a first direction, and the first direction is perpendicular to the slope direction.

[0030] In the technical solution, the electrical connection between the metal frame, the pressing block and the supporting structure is achieved by piercing the metal frame of the photovoltaic module through the pressing block, and the safety requirement that the frame of the photovoltaic module must be grounded is achieved by grounding the supporting structure, thereby avoiding the need to ground each photovoltaic module in the prior art, greatly reducing the grounding complexity of the rooftop photovoltaic system, reducing the cost of grounding wires, fastening materials and on-site construction, and greatly simplifying the difficulty and process of building the rooftop photovoltaic system.

[0031] In the present technical solution, the pressing piece is arranged as an elastic member so that the contact between the pressing piece and the photovoltaic module becomes a flexible contact, which improves the tolerance of the processing error and the installation error of the present invention and ensures the flatness of the photovoltaic module installation. More preferably, by arranging a plurality of pressing pieces, the tightness and reliability of the pressing block pressing the photovoltaic module are improved. More preferably, the weight of the pressing block is greatly reduced by the arrangement of the through hole, saving the manufacturing cost of the pressing block. More preferably, by arranging a longitudinal sealing strip, the tightness and sealing of the connection between the photovoltaic module and the supporting structure are guaranteed. More preferably, by the transverse sealing strip, the tightness of the connection between the photovoltaic modules arranged along the first direction is increased, the sealing of the roof photovoltaic system is improved, and the probability of water leakage of the roof photovoltaic system is reduced.

[0032] The present invention provides a compact and a rooftop photovoltaic system comprising the compact, which can bring at least one of the following benefits:

[0033] Beneficial effects:

[0034] 1. In the present invention, the photovoltaic assembly is fixed by pressing the pressing piece of the pressing block to press the photovoltaic assembly and the clamping part of the pressing block to clamp the photovoltaic assembly. In addition, the pressing block is clamped with the supporting structure to achieve a fixed connection between the photovoltaic assembly and the supporting structure, avoiding the connection between the photovoltaic assembly and the supporting structure by punching holes in the pressing block through connecting parts (such as screws, etc.), avoiding water leakage at the connecting parts, and at the same time avoiding oxidation and rusting at the perforated parts due to immersion in rainwater, which may cause the photovoltaic assembly to be loosely fixed and the high maintenance cost caused in the later period. More preferably, the pressing piece realizes the pressing and fixing of the photovoltaic module from the upper surface of the photovoltaic module, and the clamping part realizes the fixing of the photovoltaic module from the bottom, which effectively ensures the fixation of the photovoltaic module, ensures the wind resistance of the roof photovoltaic system, and avoids the adverse effects such as warping and displacement of the photovoltaic module; more preferably, the present invention does not need to damage the upper surface of the photovoltaic module due to perforation like the prior art, thus avoiding water leakage caused by perforation, and also avoids the phenomenon that the photovoltaic module itself fails due to rainwater entering due to perforation; the construction cost and subsequent maintenance cost of the present invention are greatly reduced, and it is firm and reliable, and the roof photovoltaic system has excellent wind resistance.

[0035] 2. In the present invention, the metal frame of the photovoltaic module is pierced by the pressing block to achieve electrical connection between the metal frame, the pressing block and the supporting structure. The supporting structure is grounded to achieve the safety requirement that the frame of the photovoltaic module must be grounded, thereby avoiding the need for each photovoltaic module to be grounded in the prior art, greatly reducing the grounding complexity of the rooftop photovoltaic system, reducing the cost of grounding wires, fastening materials and on-site construction, and greatly simplifying the difficulty and process of building the rooftop photovoltaic system. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The preferred implementation scheme will be described below in a clear and understandable manner with reference to the accompanying drawings, and the above-mentioned characteristics, technical features, advantages and implementation methods of the pressing block and the rooftop photovoltaic system containing the same will be further explained.

[0037] Figure 1 It is a schematic structural diagram of a first embodiment of a pressing block of the present invention;

[0038] Figure 2 is a schematic structural diagram of a second embodiment of a pressing block of the present invention;

[0039] Figure 3 It is a schematic structural diagram of a first embodiment of the rooftop photovoltaic system of the present invention;

[0040] Figure 4 is a schematic structural diagram of a second embodiment of the rooftop photovoltaic system of the present invention;

[0041] Figure 5 is a schematic structural diagram of a third embodiment of the rooftop photovoltaic system of the present invention;

[0042] Figure 6 is a schematic structural diagram of a fourth embodiment of the rooftop photovoltaic system of the present invention;

[0043] Figure 7 It is a schematic structural diagram of a first embodiment of the longitudinal water guide plate of the present invention;

[0044] Figure 8 yes Figure 7 A cross-sectional structural diagram of ;

[0045] Fig. 9 is a schematic structural diagram of a second embodiment of the longitudinal water guide plate of the present invention;

[0046] Fig.10 yes Fig. 9 A cross-sectional structural diagram of ;

[0047] Fig.11 This is a schematic diagram of the structure of an embodiment of a longitudinal sealing strip;

[0048] Fig.12 It is a schematic structural diagram of an embodiment of a transverse water guide plate of the present invention;

[0049] Fig.13 yes Fig.12 A cross-sectional structural diagram of ;

[0050] Fig.14 It is a schematic structural diagram of an embodiment of a transverse sealing strip of the present invention;

[0051] Fig.15 yes Fig.14 Schematic diagram of the cross-sectional structure.

[0052] Description of Figure Numbers:

[0053] 1. Pressing block, 11. Pressing plate, 12. Side plate, 121. Through hole, 13. Card slot, 14. Pressing sheet, 15. Card connection part, 16. Card, 161. Limiting part, 2. Photovoltaic module, 21. Photovoltaic panel, 22. Metal frame, 3. Water guide structure, 31. Longitudinal water guide plate, 311. Longitudinal sealing strip, 3111. Serrated surface, 3112. Contact surface, 316. Left support part, 3161. Fourth side, 3162. Fifth side, 3163. Sixth side, 3164. Second extended side, 317. Middle support Part, 3171. First edge, 31711. Card slot, 3172. Second edge, 3173. Third edge, 3174. First extension edge, 318. Right support part, 32. Horizontal water guide plate, 321. Horizontal sealing strip, 3211. First straight edge, 3212. Second straight edge, 3213. Barb, 3214. Channel, 322. Bottom surface, 323. First side wall, 324. Second side wall, 325. First card edge, 326. Second card edge, 327. First drainage edge, 328. Second drainage edge. DETAILED DESCRIPTION

[0054] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0055] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0056] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the first embodiment, Figure 1 and 2As shown, a pressing block comprises: a pressing plate 11; and two side plates 12 arranged on opposite sides of the pressing plate 11; the two side plates 12 abut against the same surface of the pressing plate 11; the pressing plate 11 and the two side plates 12 jointly surround a card slot 13; the outer side wall of the side plate 12 away from the card slot is provided with a pressing piece 14 for pressing the photovoltaic component 2; the outer side wall of the side plate 12 away from the card slot 13 is provided with a clamping portion 15 for clamping the photovoltaic component 2; the pressing piece 14 is arranged close to the bottom of the card slot 13, and the clamping portion 15 is arranged close to the opening of the card slot 13. In actual applications, the pressing piece 14 of the pressing block 1 presses the photovoltaic component 2 and the clamping part 15 of the pressing block 1 clamps the photovoltaic component 2 to achieve the fixation of the photovoltaic component 2. In addition, the clamping of the pressing block 1 and the supporting structure achieves a fixed connection between the photovoltaic component 2 and the supporting structure, avoiding the connection between the photovoltaic component 2 and the supporting structure by perforating the pressing block 1 through connecting parts (such as screws, etc.), avoiding water leakage at the connecting parts, and at the same time avoiding oxidation and rusting at the perforated parts due to immersion in rainwater, which may cause the photovoltaic component 2 to be loosely fixed and the high maintenance cost caused in the later period. The pressing piece 14 realizes the pressing and fixing of the photovoltaic component 2 from the upper surface of the photovoltaic component 2, and the clamping part 15 realizes the fixing of the photovoltaic component 2 from the bottom, which effectively ensures the fixation of the photovoltaic component 2, ensures the wind resistance of the roof photovoltaic system, and avoids the adverse effects such as warping and displacement of the photovoltaic component 2; more preferably, the present invention does not need to damage the upper surface of the photovoltaic component 2 due to perforation like the prior art, avoids water leakage due to perforation, and also avoids the phenomenon that the photovoltaic component 2 itself fails due to rainwater entering due to perforation; the construction cost and subsequent maintenance cost of the present invention are greatly reduced, and it is firm and reliable, and the roof photovoltaic system has excellent wind resistance.

[0058] In the second embodiment, Figure 1 and 2As shown, on the basis of the first embodiment, the clamping portion 15 pierces the metal frame 22 of the photovoltaic module 2 to achieve contact connection between the clamping portion 15 and the metal frame 22. In practical applications, since the metal frame 22 of the photovoltaic module 2 needs to be grounded, the safety of the roof photovoltaic system is improved, but each photovoltaic module 2 needs to be grounded, which makes the grounding of the roof photovoltaic system very cumbersome and complicated, which is not conducive to the construction process. The present invention creatively uses the pressing block 1 to pierce the metal frame 22 to achieve contact connection between the pressing block 1 and the metal frame 22. Since the pressing block 1 is clamped on the supporting structure (such as the longitudinal water guide plate 31 or the supporting plate) for supporting the photovoltaic module 2, the pressing block 1 is used as a conductor to conduct the metal frame 22 and the supporting structure, thereby achieving electrical connection between the metal frame 22, the pressing block 1 and the supporting structure. By grounding the supporting structure, the grounding safety setting of the photovoltaic module 2 can be achieved. Since the number of supporting structures is much smaller than the photovoltaic module 2, the installation and implementation of the grounding of the photovoltaic module 2 is greatly simplified. The cumbersomeness and difficulty. It is worth noting that the clamp 1 only needs to realize the electrical connection between the metal frame 22 and the supporting structure (i.e., the ground connection), and the clamp 1 can be a metal component as a whole or partially. Preferably, the clamping portion 15 is formed by folding a part of the side panel 12 in the direction away from the slot 13, so that the clamping portion 15 is arranged at an angle to the side panel 12. Preferably, the end of the clamping portion 15 away from the side panel 12 is a pointed end or is provided with a thorn (the thorn is arranged in the direction away from the slot 13). In actual applications, the clamping portion 15 can be arranged only on the first side panel or the second side panel, or can be arranged on both the first side panel and the second side panel, depending on the actual application.

[0059] Preferably, the pressing piece 14 is an elastic member, and the pressing piece 14 can be a plastic pressing piece or a metal pressing piece. Preferably, the pressing block 1 has a certain elastic restoring force, so as to facilitate the pressing of the photovoltaic module 2. Preferably, the pressing piece 14 preferably extends to the photovoltaic panel 21 of the photovoltaic module 2, and the stability and firmness of the photovoltaic module 2 fixed to the roof are ensured by increasing the contact area between the pressing piece 14 and the photovoltaic module 2. Preferably, the pressing piece 14 can be arranged perpendicular to or at an angle to the extension direction of the card slot 13. And the pressing piece 14 is preferably arranged on both sides of the pressing plate 11, that is, the outer side walls of the first side plate and the second side plate are both provided with a pressing piece 14. It is worth noting that when the end surfaces of the first side plate and the second side plate near the bottom of the card slot 13 are flush with the upper surface of the pressing plate 11, the pressing sheet 14 is arranged on the side plate 12, and when the end surfaces of the first side plate and the second side plate near the bottom of the card slot 13 are flush (butted) with the lower surface of the pressing plate 11, the pressing sheet 14 can be arranged on the side plate 12 or the pressing plate 11, but both should fall within the protection scope of the present invention. Preferably, the surface of the pressing sheet 14 away from the card slot 13 is provided with reinforcing ribs.

[0060] In the third embodiment, Figure 1 and 2As shown, on the basis of the first or second embodiment, a card 16 is provided on the inner side of the side of the side plate 12 close to the card slot 13; the card 16 is arranged at an angle with the side plate 12. On the basis of the card slot 13 clamping the support structure, the support structure is further clamped by the card 16, thereby ensuring the tightness and reliability of the connection between the pressing block 1 and the support structure. Preferably, a limiting portion 161 is provided at the end of the card 16 away from the side plate 12, so that the end of the card 16 away from the side plate 12 is a branch-shaped, which increases the firmness of the card 16 clamping the support structure. Preferably, the card 16 is formed by bending a part of the side plate 12 toward the card slot 13, and the end of the card 16 away from the side plate 12 is arranged near the bottom of the card slot 13. Preferably, the card 16 is made of a material with elastic memory, thereby increasing the stability and firmness of the connection between the card 16 and the support structure. Preferably, a through hole 121 is provided at the position of the side plate 12 corresponding to the pressing sheet 14. Preferably, more than one clamping portion 15 is arranged directly below the pressing sheet 14. In practical applications, the number and position of the card 16, the pressing sheet 14, the clamping portion 15, and the through hole 121 can be set according to actual needs. Preferably, a reinforcing rib is provided on the surface of the card 16 away from the card slot 13.

[0061] In the fourth embodiment, Figure 1-15 As shown, a rooftop photovoltaic system comprises: a pressing block 1, a plurality of photovoltaic modules 2 and a supporting structure; the pressing block 1 comprises a pressing plate 11; and two side plates 12 arranged on opposite sides of the pressing plate 11; the two side plates 12 abut against the same surface of the pressing plate 11; the pressing plate 11 and the two side plates 12 are jointly arranged to form a slot 13; the outer wall of the side plate 12 away from the slot is provided with a pressing piece 14 for pressing the photovoltaic module 2; the outer wall of the side plate 12 away from the slot 13 is provided with a clamping portion 15 for clamping the photovoltaic module 2; the pressing piece 14 is arranged near the bottom of the slot 13, and the clamping portion 15 is arranged near the opening of the slot 13; the supporting structure extends along the slope and is laid on the roof at intervals, and the photovoltaic module 2 is arranged on the first supporting portion of two adjacent supporting structures; the slot 13 is clamped in the middle supporting portion 317 of the supporting structure, so that the pressing piece 14 is pressed on the upper surface of the photovoltaic module 2, and the clamping portion 15 clamps the photovoltaic module 2.

[0062] In Example 5, Figure 1-15As shown, on the basis of the fourth embodiment, the clamping part 15 pierces the metal frame 22 of the photovoltaic assembly 2 to achieve the contact connection between the clamping part 15 and the metal frame 22; the metal frame 22, the pressing block 1 and the supporting structure are electrically connected; and the supporting structure is grounded. In practical applications, since the metal frame 22 of the photovoltaic assembly 2 needs to be grounded, the safety of the roof photovoltaic system is improved, but each photovoltaic assembly 2 needs to be grounded, which makes the grounding of the roof photovoltaic system very cumbersome and complicated, which is not conducive to the construction process. The present invention creatively uses the pressing block 1 to pierce the metal frame 22 to achieve the contact connection between the pressing block 1 and the metal frame 22. Since the pressing block 1 is clamped on the supporting structure for supporting the photovoltaic assembly 2, the pressing block 1 is used as a conductor to conduct the metal frame 22 and the supporting structure, thereby achieving the electrical connection between the metal frame 22, the pressing block 1 and the supporting structure. By grounding the supporting structure, the grounding safety setting of the photovoltaic assembly 2 can be achieved. Since the number of supporting structures is much smaller than that of the photovoltaic assembly 2, the installation and implementation of the grounding of the photovoltaic assembly 2 is greatly simplified. The cumbersomeness and difficulty. It is worth noting that the clamp 1 only needs to realize the electrical connection between the metal frame 22 and the supporting structure (i.e., the ground connection), and the clamp 1 can be a metal component as a whole or partially. Preferably, the clamping portion 15 is formed by folding a part of the side panel 12 in the direction away from the slot 13, so that the clamping portion 15 is arranged at an angle to the side panel 12. Preferably, the end of the clamping portion 15 away from the side panel 12 is a pointed end or is provided with a thorn (the thorn is arranged in the direction away from the slot 13). In actual applications, the clamping portion 15 can be arranged only on the first side panel or the second side panel, or can be arranged on both the first side panel and the second side panel, depending on the actual application.

[0063] Preferably, the pressing piece 14 is an elastic member, and the pressing piece 14 can be a plastic pressing piece or a metal pressing piece. Preferably, the pressing block 1 has a certain elastic restoring force, so as to facilitate the pressing of the photovoltaic module 2. Preferably, the pressing piece 14 preferably extends to the photovoltaic panel 21 of the photovoltaic module 2, and the stability and firmness of the photovoltaic module 2 fixed to the roof are ensured by increasing the contact area between the pressing piece 14 and the photovoltaic module 2. Preferably, the pressing piece 14 can be arranged perpendicular to or at an angle to the extension direction of the card slot 13. And the pressing piece 14 is preferably arranged on both sides of the pressing plate 11, that is, the outer side walls of the first side plate and the second side plate are both provided with a pressing piece 14. It is worth noting that when the end faces of the first side plate and the second side plate near the bottom of the card slot 13 are flush with the upper surface of the pressing plate 11, the pressing sheet 14 is arranged on the side plate 12, and when the end faces of the first side plate and the second side plate near the bottom of the card slot 13 are flush (butted) with the lower surface of the pressing plate 11, the pressing sheet 14 can be arranged on either the side plate 12 or the pressing plate 11, but both should belong to the protection scope of the present invention. Preferably, the surface of the pressing sheet 14 away from the card slot 13 is provided with reinforcing ribs. Preferably, the surface of the pressing sheet 14 close to the photovoltaic module 2 is provided with a groove to avoid the occurrence of bubbles between the pressing sheet 14 and the photovoltaic module 2, ensure the fit between the pressing sheet 14 and the photovoltaic module 2, and improve the connection firmness between the pressing sheet 14 and the photovoltaic module 2.

[0064] In Example 6, Figure 1 and 2 As shown, on the basis of the fourth or fifth embodiment, a card 16 is provided on the inner side of the side of the side plate 12 close to the card slot 13; the card 16 is arranged at an angle with the side plate 12. On the basis of the card slot 13 clamping the support structure, the support structure is further clamped by the card 16, thereby ensuring the tightness and reliability of the connection between the pressing block 1 and the support structure. Preferably, a limiting portion 161 is provided at the end of the card 16 away from the side plate 12, so that the end of the card 16 away from the side plate 12 is a branch-shaped, which increases the firmness of the card 16 clamping the support structure. Preferably, the card 16 is formed by bending a part of the side plate 12 toward the card slot 13, and the end of the card 16 away from the side plate 12 is arranged near the bottom of the card slot 13. Preferably, the card 16 is made of a material with elastic memory, thereby increasing the stability and firmness of the connection between the card 16 and the support structure. Preferably, a through hole 121 is provided at the position of the side plate 12 corresponding to the pressing sheet 14. Preferably, more than one clamping portion 15 is arranged directly below the pressing sheet 14. In practical applications, the number and position of the card 16, the pressing sheet 14, the clamping portion 15, and the through hole 121 can be set according to actual needs. Preferably, a reinforcing rib is provided on the surface of the card 16 away from the card slot 13.

[0065] In embodiment seven, Figure 1-15As shown, on the basis of the fourth, fifth or sixth embodiment, the cross-sectional shape of the support structure is a convex structure, including an integrally formed left support portion 316, an intermediate support portion 317 and a right support portion 318; the cross-sectional shape of the intermediate support portion 317 is an inverted U-shaped structure, including a first side 3171, a second side 3172 and a third side 3173 connected in sequence, and the second side 3172 forms the closed end of the intermediate support portion 317; the left support portion 316 and the right support portion 318 form a first supporting portion. Preferably, the outer side wall of the first side 3171 and the third side 3173 is provided with a card slot 31711 for clamping the card 16. Preferably, the card slot 31711 is formed by the first side 3171 and the third side 3173 being concave, so that the inverted U-shaped structure becomes a T-shaped structure on the side close to the closed end, and the inverted U-shaped structure becomes a variable diameter tubular structure on the side away from the closed end, and its small diameter end is arranged close to the Y-shaped structure. In this way, the end of the card 16 away from the side plate 12 can be clamped at the two corners of the T-shaped structure. Preferably, the end of the transverse structure of the T-shaped structure is provided with a chamfer with the center of the circle facing the side of the variable diameter tubular structure, thereby realizing the clamping of the limiting portion 161 and the chamfer to prevent the pressure block 1 from falling off the supporting structure.

[0066] In the eighth embodiment, Figure 1-15 As shown, on the basis of the fourth, fifth, sixth or seventh embodiment, it further includes a water guide structure 3, and the water guide structure 3 includes a longitudinal water guide plate 31 laid under the supporting structure, so that the joints of the photovoltaic modules 2 arranged on both sides of the supporting structure are located above the water guide groove of the water guide structure 3. Preferably, the water guide structure 3 also includes a transverse water guide plate 32 extending along a first direction, and the first direction is perpendicular to the downslope direction; the transverse water guide plate 32 is arranged below the contact point of two adjacent photovoltaic modules 2, and the transverse water guide plate 32 is communicated with the longitudinal water guide plate 31. Preferably, a transverse sealing strip 321 is provided at the contact point of two adjacent photovoltaic modules 2 along the first direction; preferably, as Fig.14 and 15 As shown, the transverse sealing strip 321 is a T-shaped structure, including a first straight edge 3211 and a second straight edge 3212 perpendicular to each other, and in actual application, the first straight edge 3211 protrudes from the upper surface of the photovoltaic module 2, and the second straight edge 3212 is sandwiched between two adjacent photovoltaic modules 2; further preferably, the second straight edge 3212 is a hollow structure, that is, the second straight edge 3212 is provided with a channel 3214 along the slope, and the two outer side walls of the second straight edge 3212 arranged along the first direction are provided with barbs 3213. The presence of the barbs 3213 can reduce the gap at the contact point of the photovoltaic module 2, and make the rainwater flow on the upper surface of the photovoltaic module 2 as much as possible, thereby reducing the probability of water seepage and leakage of the BIPV, thereby reducing the size of the profile of the transverse water guide plate 32 and reducing the cost; and the setting of the channel 3214 improves the sealing fit of adjacent photovoltaic modules 2, thereby reducing the gap at the contact point between the two.

[0067] In the ninth embodiment, Figure 1-15 As shown, on the basis of the fourth, fifth, sixth, seventh or eighth embodiment, a longitudinal sealing strip 311 is provided between the photovoltaic module 2 and the first supporting part; preferably, the surface of the longitudinal sealing strip 311 close to the photovoltaic module 2 is a serrated surface 3111, and the surface close to the first supporting part is a flat contact surface 3112, preferably, the contact surface 3112 is provided with adhesive, so that when the longitudinal sealing strip 311 is actually installed, the longitudinal sealing strip 311 can be directly bonded to the first supporting part through the adhesive, avoiding the undesirable phenomenon of the longitudinal sealing strip 311 falling off during the installation of the photovoltaic module 2, thereby improving the efficiency of roof construction. In order to reduce the space occupied by the support structure and the water guide structure 3 in the height direction of the roof, the support structure is preferably a longitudinal water guide plate 31. Preferably, the cross-sectional shape of the longitudinal water guide plate 31 is a W-shaped structure, including an integrally formed left support portion 316, a middle support portion 317 and a right support portion 318; the left support portion 316 and the right support portion 318 are both groove-shaped structures and constitute a water guide groove; the cross-sectional shape of the middle support portion 317 is an inverted U-shaped structure, including a first edge 3171, a second edge 3172 and a third edge 3173 connected in sequence, and the second edge 3172 forms a closed end of the middle support portion 317; the first edge 3171 and the third edge 3173 are respectively extended outward along the first direction with a first extension edge 3174, and the first extension edge 3174 forms a first supporting portion. Preferably, the first side 3171 and the third side 3173 are provided with a card slot 31711. Preferably, the card slot 31711 is formed by the first side 3171 and the third side 3173 being concave, so that the inverted U-shaped structure close to the closed end becomes a T-shaped structure, and the inverted U-shaped structure away from the closed end becomes a variable diameter tubular structure, and its small diameter end is arranged close to the Y-shaped structure. In this way, the end of the card 16 away from the side plate 12 can be clamped at the two corners of the T-shaped structure. Preferably, the end of the transverse structure of the T-shaped structure is provided with a chamfer with the center of the circle facing the variable diameter tubular structure, so as to realize the clamping of the limit part 161 and the chamfer, and prevent the pressure block 1 from falling off the support structure. In practical applications, the cross-sectional shape of the intermediate support part 317 can also be a solid structure, but this will waste the material of the longitudinal water guide plate 31, but it should also fall within the protection scope of this application. Preferably, the cross-sectional shapes of the left support portion and the right support portion 318 are both U-shaped groove structures, including a fourth side 3161, a fifth side 3162 and a sixth side 3163 connected in sequence; the fifth side 3162 forms a closed end, and the sixth side 3163 is arranged close to the middle support portion 317; the fourth side 3161 extends outwardly along the first direction to have a second extended side 3164, and the second extended side 3164 forms a second supporting portion for supporting the transverse water guide plate 32. Of course, the cross-sectional shape of the water guide groove can also be V-shaped or other shapes.

[0068] In actual application, since multiple longitudinal water guide plates 31 are arranged on the roof purlins in sequence along the first direction, and the photovoltaic component 2 is supported by the first supporting parts of the two longitudinal water guide plates 31 adjacent to each other along the first direction, that is, the side wall on the left side of the photovoltaic component 2 is supported by the first supporting part on the right side of the left longitudinal water guide plate 31; the side wall on the right side of the photovoltaic component 2 is supported by the first supporting part on the left side of the right longitudinal water guide plate 31; and the transverse water guide plate 32 is placed on the second supporting parts of the two longitudinal water guide plates 31 adjacent to each other along the first direction, that is, the end on the left side of the transverse water guide plate 32 is supported by the second supporting part on the right side of the left longitudinal water guide plate 31; the end on the right side of the transverse water guide plate 32 is supported by the second supporting part on the left side of the left longitudinal water guide plate 31; so that rainwater in the transverse water guide plate 32 can flow to the longitudinal water guide plate 31, thereby realizing the discharge of rainwater at the contact point between adjacent photovoltaic components 2.

[0069] In Example 10, Figure 1-15 As shown, on the basis of Embodiment 8 or 9, the cross-sectional shape of the transverse water guide plate 32 is a U-shaped structure, including a first side wall 323, a bottom surface 322 and a second side wall 324, the bottom surface 322 forming a closed end of the transverse water guide plate 32; the open end of the transverse water guide plate 32 is arranged toward the photovoltaic component 2; the two ends of the bottom surface 322 arranged along the first direction respectively extend downward with a first clamping edge 325 and a second clamping edge 326, so that the transverse water guide plate 32 is clamped on two adjacent longitudinal water guide plates 31, and the transverse water guide plate 32 is communicated with the longitudinal water guide plate 31. In the actual installation process, the first clamping edge 325 located on the right side of the transverse water guide plate 32 is clamped on the inner wall of the second supporting portion of the longitudinal water guide plate 31 located on the right side; the second clamping edge 326 located on the left side of the transverse water guide plate 32 is clamped on the inner wall of the second supporting portion of the longitudinal water guide plate 31 located on the left side; preferably, the end of the first side wall 323 away from the bottom surface 322 extends outwardly with a first drainage edge 327; the end of the second side wall 324 away from the bottom surface 322 extends outwardly with a second drainage edge 328; preferably, the center line of the bottom surface 322 corresponds to the contact point of two adjacent photovoltaic modules 2, that is, the transverse water guide plate 32 is located directly below the contact point of two adjacent photovoltaic modules 2. Preferably, the height of the first supporting portion is greater than the height of the second supporting portion, so that a gap is left between the bottom surface 322 of the transverse water guide plate 32 and the lower surface of the photovoltaic module 2, which is convenient for the drainage of rainwater and the installation of the photovoltaic module 2, and the transverse guide plate does not participate in the support of the photovoltaic module 2.

[0070] It should be noted that the above embodiments can be freely combined as needed. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A briquette, characterized in that: include: A pressing plate; and two side plates arranged on opposite sides of the pressing plate; the two side plates abut against the same surface of the pressing plate; the pressing plate and the two side plates are jointly surrounded to form a card slot; the outer side wall of the side plate away from the card slot is provided with a pressing sheet for pressing the photovoltaic component; the outer side wall of the side plate away from the card slot is provided with a card portion for clamping the photovoltaic component, and the inner side of the side plate close to the card slot is provided with a card, and the card is arranged at an angle with the side plate; The pressing sheet is arranged close to the bottom of the card slot, and the clamping portion is arranged close to the opening of the card slot.

2. The pressing block according to claim 1, characterized in that: The clamping portion pierces the metal frame of the photovoltaic component to achieve contact connection between the clamping portion and the metal frame.

3. The pressing block according to claim 1, characterized in that: The end of the card away from the side plate is provided with a limiting portion; and / or, The card is formed by bending a portion of the side plate toward the card slot, and an end of the card away from the side plate is arranged close to the bottom of the card slot.

4. The briquetting according to any one of claims 1 to 3, characterized in that: The pressing sheet is an elastic member; and / or, The pressing block is provided with a plurality of pressing sheets; and / or, The side plate is provided with a through hole at a position corresponding to the pressing sheet.

5. A rooftop photovoltaic system, characterized in that: A compact, several photovoltaic modules and a supporting structure; The pressing block comprises a pressing plate; and two side plates arranged on opposite sides of the pressing plate; the two side plates abut against the same surface of the pressing plate; the pressing plate and the two side plates are jointly arranged to form a slot; the outer side wall of the side plate away from the slot is provided with a pressing piece for pressing the photovoltaic component; the outer side wall of the side plate away from the slot is provided with a clamping portion for clamping the photovoltaic component; the pressing piece is arranged close to the bottom of the slot, and the clamping portion is arranged close to the opening of the slot; The supporting structure extends along the slope and is laid on the roof at intervals, and the photovoltaic components are arranged on the first supporting parts of two adjacent supporting structures; the card slot is clamped on the middle supporting part of the supporting structure, so that the pressing sheet is pressed on the upper surface of the photovoltaic component, and the clamping part clamps the photovoltaic component.

6. The rooftop photovoltaic system according to claim 5, characterized in that: A card is provided on the inner side of the side plate close to the card slot; the card is arranged at an angle to the side plate; The cross-sectional shape of the support structure is a convex structure, including an integrally formed left support portion, a middle support portion and a right support portion; the cross-sectional shape of the middle support portion is an inverted U-shaped structure, including a first side, a second side and a third side connected in sequence, and the second side forms a closed end of the middle support portion; the outer side walls of the first side and the third side are provided with a card slot for clamping the card; the left support portion and the right support portion form the first supporting portion.

7. The rooftop photovoltaic system according to claim 5, characterized in that: Also includes: The water guide structure comprises a longitudinal water guide plate extending along the slope, and the longitudinal water guide plate is provided with a water guide groove at the joint of the photovoltaic components arranged on both sides of the longitudinal water guide plate.

8. The rooftop photovoltaic system according to claim 7, characterized in that: The water guide structure further includes a transverse water guide plate extending along a first direction, the first direction being perpendicular to the downslope direction; the transverse water guide plate is arranged below the contact point of two adjacent photovoltaic modules, and the transverse water guide plate is communicated with the longitudinal water guide plate; and / or, The supporting structure is the longitudinal water guide plate.

9. The rooftop photovoltaic system according to any one of claims 5 to 8, characterized in that: The clamping part pierces the metal frame of the photovoltaic module to achieve contact connection between the clamping part and the metal frame; so that the metal frame, the pressing block and the supporting structure are electrically connected; the supporting structure is grounded; and / or, The pressing sheet is an elastic member; and / or, The pressing block is provided with a plurality of pressing sheets; and / or, The side plate is provided with a through hole at a position corresponding to the pressing sheet; and / or, A longitudinal sealing strip is provided between the photovoltaic assembly and the first supporting portion; and / or, A transverse sealing strip is provided at the contact point between two adjacent photovoltaic modules along a first direction, and the first direction is perpendicular to the downslope direction.

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