Short frame for fixing photovoltaic module, photovoltaic module and photovoltaic system

Abstract

The utility model discloses a short frame used for fixing a photovoltaic assembly, the photovoltaic assembly and a photovoltaic system. The short frame used for fixing the photovoltaic assembly comprises an upper frame and a lower frame which are buckled with each other. An accommodating space is formed between the upper frame and the lower frame; the side, close to the containing space, of the upper frame is provided with a first reinforcing piece, the side, close to the containing space, of the lower frame is provided with a second reinforcing piece corresponding to the first reinforcing piece, the extending direction of the first reinforcing piece is the same as the extending direction of the second reinforcing piece, and the photovoltaic assembly is fixed among the first reinforcing piece, part of the side wall of the lower frame and the second reinforcing piece. According to the utility model, the first reinforcer and the second reinforcer are respectively introduced into the upper frame and the lower frame, so that the photovoltaic module can be effectively fixed, the protection effect on the photovoltaic module can be enhanced, the photovoltaic module can be locally reinforced, the reliability of the photovoltaic module can be improved, and the service life of the photovoltaic module can be prolonged. And meanwhile, the shear stress of the edge position connected between the short frame and the photovoltaic module is reduced as much as possible subsequently.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, and more specifically, to a short frame for fixing a photovoltaic component, a photovoltaic component and a photovoltaic system. Background Art

[0002] At present, photovoltaic modules can be installed by fixing them on the bracket keel through special-shaped frames. The edge where the special-shaped frames are connected to the photovoltaic modules is the stress concentration location. Since the special-shaped frames are short, large shear stress is generated at the edges of the special-shaped frames, which causes large shear stress to be generated inside the photovoltaic modules, leading to the risk of photovoltaic modules exploding. Therefore, this is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0003] In view of this, the utility model provides a short frame for fixing photovoltaic modules, so as to solve the problem that large shear stress is generated at the edge of the special-shaped frame, thereby causing large shear stress to be generated inside the photovoltaic module, and further causing the risk of photovoltaic module explosion.

[0004] In a first aspect, the present application provides a short frame for fixing a photovoltaic module, comprising an upper frame and a lower frame that are interlocked; a receiving space for placing the photovoltaic module is formed between the upper frame and the lower frame;

[0005] A first reinforcement is arranged on the side of the upper frame close to the accommodating space, and a second reinforcement corresponding to the first reinforcement is arranged on the side of the lower frame close to the accommodating space. The extension direction of the first reinforcement is the same as the extension direction of the second reinforcement, and the photovoltaic module is fixed between the first reinforcement, part of the side wall of the lower frame and the second reinforcement.

[0006] Optionally, the first reinforcement is provided with a first flexible pad on a side of the upper frame close to the photovoltaic assembly, and the first reinforcement is provided with a second flexible pad on a side of the upper frame away from the photovoltaic assembly;

[0007] The second reinforcement is provided with a third flexible pad on a side of the lower frame away from the photovoltaic assembly.

[0008] In a second aspect, a photovoltaic assembly is provided, wherein the photovoltaic assembly is placed in the accommodation space of the short frame during installation, and the short frame is any of the short frames described above;

[0009] It comprises a laminate and a frame, wherein the frame covers the circumferential edge of the laminate;

[0010] The frame includes a bottom plate and a side plate connected to the bottom plate, the bottom wall of the periphery of the laminate is placed on the bottom plate, and the side wall of the periphery of the laminate is close to the side plate.

[0011] In a third aspect, a photovoltaic system comprises a bracket, the photovoltaic assembly and the short frame;

[0012] The photovoltaic assembly is placed in the accommodation space, wherein when the first reinforcement is located on the side of the upper frame close to the photovoltaic assembly and a first flexible pad is provided, the first flexible pad is placed on the top surface of the laminate, and the bottom surface of the frame is connected to the second reinforcement;

[0013] The lower frame is connected to the bracket.

[0014] Optionally, when the upper frame includes a first transverse plate and the lower frame includes a second transverse plate, along the length direction of the short frame, the length of the first transverse plate is equal to the length of the second transverse plate;

[0015] When the first reinforcement is located on the side of the upper frame close to the photovoltaic assembly and a first flexible pad is provided, and the second reinforcement is located on the side of the lower frame away from the photovoltaic assembly and a third flexible pad is provided, along the length direction of the short frame, the lengths of the first reinforcement, the second reinforcement and / or the first flexible pad are equal;

[0016] Along the length direction of the short frame, the length of the first reinforcement member is greater than the length of the first transverse plate.

[0017] Optionally, along the length direction of the short frame, the length of the first transverse plate and / or the second transverse plate is L1, the length of the first reinforcement member, the second reinforcement member and / or the first flexible pad is L2, and L2-L1≥100 mm.

[0018] Compared with the prior art, the short frame, photovoltaic module and photovoltaic system for fixing the photovoltaic module provided by the utility model achieve at least the following beneficial effects:

[0019] The utility model provides a short frame, a photovoltaic module and a photovoltaic system for fixing a photovoltaic module, wherein the short frame for fixing the photovoltaic module comprises an upper frame and a lower frame that are interlocked; a storage space for placing the photovoltaic module is formed between the upper frame and the lower frame; a first reinforcement member is arranged on a side of the upper frame close to the storage space, and a second reinforcement member corresponding to the first reinforcement member is arranged on a side of the lower frame close to the storage space, the extension direction of the first reinforcement member is the same as the extension direction of the second reinforcement member, and the photovoltaic module is fixed between the first reinforcement member, a part of the side wall of the lower frame and the second reinforcement member; by adopting the above scheme, by respectively introducing the first reinforcement member and the second reinforcement member into the upper frame and the lower frame, not only can the photovoltaic module be effectively fixed, thereby facilitating the protection effect of the photovoltaic module, but also the photovoltaic module can be partially strengthened, which is facilitating the improvement of the reliability of the photovoltaic module, and at the same time, the shear stress at the edge position where the short frame and the photovoltaic module are connected is subsequently reduced as much as possible, thereby reducing the risk of explosion of the photovoltaic module as much as possible.

[0020] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time.

[0021] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0023] Figure 1 This is a structural schematic diagram of a short frame for fixing a photovoltaic module provided by the utility model;

[0024] Figure 2 This is a schematic diagram of the use status of a short frame for fixing a photovoltaic module provided by the utility model;

[0025] Figure 3 It is a structural schematic diagram of a frame in the prior art;

[0026] Figure 4 It is a structural schematic diagram of a photovoltaic assembly provided by the utility model;

[0027] Figure 5 This is a schematic diagram of a structure in which a photovoltaic module provided by the utility model is installed on a short frame;

[0028] Figure 6 It is a structural schematic diagram of a laminate provided by the utility model;

[0029] Figure 7It is a structural schematic diagram of a frame provided by the utility model;

[0030] Figure 8 It is a structural schematic diagram of a photovoltaic system provided by the utility model;

[0031] Fig. 9 yes Figure 8 A partial enlarged view of the middle part;

[0032] Fig.10 This is a schematic diagram of the structure of a photovoltaic system provided by the utility model in another direction;

[0033] Fig.11 yes Fig.10 A partial enlarged view of point B in the middle;

[0034] Fig.12 The utility model is a structural schematic diagram of a short frame and a photovoltaic component. DETAILED DESCRIPTION

[0035] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0036] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0037] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0038] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0039] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0040] Figure 1 This is a structural schematic diagram of a short frame for fixing a photovoltaic module provided by the utility model; Figure 2 This is a schematic diagram of the use status of a short frame for fixing a photovoltaic module provided by the utility model; Figure 1 and Figure 2As shown, this embodiment provides a short frame a for fixing a photovoltaic module, comprising an upper frame 1 and a lower frame 2 that are buckled together; a receiving space 3 for placing a photovoltaic module 4 is formed between the upper frame 1 and the lower frame 2;

[0041] A first reinforcement 11 is provided on the side of the upper frame 1 close to the accommodating space 3, and a second reinforcement 21 corresponding to the first reinforcement 11 is provided on the side of the lower frame 2 close to the accommodating space 3. The extension direction of the first reinforcement 11 is the same as the extension direction of the second reinforcement 21. The photovoltaic component 4 is fixed between the first reinforcement 11, part of the side wall of the lower frame 2, and the second reinforcement 21.

[0042] Specifically, combined Figure 1 and Figure 2 As shown, the short frame a for fixing the photovoltaic module includes an upper frame 1 and a lower frame 2 that are interlocked. After interlocking, a receiving space 3 is formed between the upper frame 1 and the lower frame 2. The receiving space 3 can be a rectangular groove, and the photovoltaic module 4 is placed in the rectangular groove. A first reinforcing member 11 is arranged on the side of the upper frame 1 close to the receiving space 3. The first reinforcing member 11 can be a reinforcing rib. The length extension direction of the reinforcing rib is the same as the length extension direction of the upper frame 1. Optionally, the reinforcing rib can be a rectangular plate; a second reinforcing member 21 is arranged on the side of the lower frame 2 close to the receiving space 3. The second reinforcing member 21 corresponds to the first reinforcing member 11. The second reinforcing member 21 can also be a reinforcing rib. The length extension direction of the reinforcing rib is the same as the length extension direction of the lower frame 2. The lower frame 2 and the upper frame 1 have the same extension direction. The second reinforcing member 21 can directly abut against the photovoltaic module 4 The bottom surface supports the photovoltaic component 4. Optionally, the reinforcing ribs can also be rectangular plates. The photovoltaic component 4 is installed between the first reinforcing member 11, the side wall of part of the lower frame 2 and the second reinforcing member 21. The first reinforcing member 11 and the second reinforcing member 21 can not only effectively fix the photovoltaic component 4, thereby helping to enhance the protection effect of the photovoltaic component 4, but also partially strengthen the photovoltaic component 4, which is beneficial to improving the reliability of the photovoltaic component 4. At the same time, the shear stress at the edge position where the short frame a and the photovoltaic component 4 are connected is subsequently reduced as much as possible, thereby reducing the risk of explosion of the photovoltaic component 4 as much as possible.

[0043] Optionally, combined Figure 1 and Figure 2 As shown, along the direction from the upper frame 1 to the lower frame 2, the thickness of the first reinforcement 11 and the second reinforcement 21 are equal, and the thickness of the second reinforcement plate is not less than 0.5 mm, which can effectively withstand the shear stress of the photovoltaic module 4, thereby reducing the risk of explosion of the photovoltaic module 4.

[0044] It can be seen from the above embodiments that the short frame a for fixing the photovoltaic module provided in this embodiment achieves at least the following beneficial effects:

[0045] The short frame a for fixing the photovoltaic module provided in the present embodiment comprises an upper frame 1 and a lower frame 2 which are interlocked; a receiving space 3 for placing the photovoltaic module 4 is formed between the upper frame 1 and the lower frame 2; a first reinforcing member 11 is arranged on the side of the upper frame 1 close to the receiving space 3, and a second reinforcing member 21 corresponding to the first reinforcing member 11 is arranged on the side of the lower frame 2 close to the receiving space 3, the extension direction of the first reinforcing member 11 is the same as the extension direction of the second reinforcing member 21, and the photovoltaic module 4 is fixed between the first reinforcing member 11, part of the side wall of the lower frame 2, and the second reinforcing member 21; adopting the above scheme, by respectively introducing the first reinforcing member 11 and the second reinforcing member 21 into the upper frame 1 and the lower frame 2, not only can the photovoltaic module 4 be effectively fixed, thereby facilitating the protection effect of the photovoltaic module 4, but also the photovoltaic module 4 can be partially strengthened, which is facilitating the reliability of the photovoltaic module 4, and at the same time, the shear stress at the edge position where the short frame a is connected to the photovoltaic module 4 is subsequently reduced as much as possible, thereby minimizing the risk of explosion of the photovoltaic module 4.

[0046] Based on the above problems, in this embodiment, a first flexible pad 12 is provided on the side of the first reinforcement 11 located on the upper frame 1 close to the photovoltaic component 4, and a second flexible pad 13 is provided on the side of the first reinforcement 11 located on the upper frame 1 away from the photovoltaic component 4; the second reinforcement 21 is provided on the side of the lower frame 2 away from the photovoltaic component 4.

[0047] Specifically, combined Figure 1 and Figure 2As shown, a first flexible pad 12 is installed on the side of the first reinforcement 11 located on the upper frame 1 close to the photovoltaic component 4, and the first flexible pad 12 can be directly bonded to the front of the photovoltaic component 4, and a second flexible pad 13 is installed on the side of the first reinforcement 11 located on the upper frame 1 away from the photovoltaic component 4; the second reinforcement 21 can be bonded to the back of the photovoltaic component 4 through silicone near the photovoltaic component 4, and a third flexible pad 22 is installed on the side of the second reinforcement 21 located on the lower frame 2 away from the photovoltaic component 4. The first flexible pad 12 and the first reinforcement 11 can be connected together by bonding, the second flexible pad 13 and the first reinforcement 11 can also be connected together by bonding, and the third flexible pad 22 and the second reinforcement 21 can also be connected by bonding. connected together for easy installation; optionally, the photovoltaic module 4 includes a laminate (not shown in the figure) and a frame covering the laminate (not shown in the figure). When the laminate is deformed upward or downward by a force along its own thickness direction, the first flexible pad 12 and the second flexible pad 13 are directly in soft contact with the first reinforcement 11, the third flexible pad 22 is directly in soft contact with the second reinforcement 21, and the bottom surface of the frame is in contact with the second reinforcement 21. At the same time, the edge portions of the upper frame 1 and the lower frame 2 do not need to directly contact the laminate, thereby more effectively avoiding the risk of explosion of the photovoltaic module 4 due to stress concentration. Compared with the prior art, the risk of the laminate directly bearing all the shear stresses is greatly reduced, thereby reducing the risk of explosion of the photovoltaic module 4.

[0048] Optionally, combined Figure 1 and Figure 2 As shown, the first flexible pad 12, the second flexible pad 13, and the third flexible pad 22 can directly use foam tape, which has good anti-compression deformation performance, that is, the elasticity is durable, which can ensure that the photovoltaic module 4 is protected from shock for a long time; it is flame retardant and non-corrosive to metal; it has long-lasting adhesion, strong initial adhesion, and good weather resistance. Of course, according to actual conditions, other flexible materials, such as silicone, rubber, etc., can be selected. This embodiment only takes foam tape as an example.

[0049] In an optional embodiment, the upper frame 1 includes a first horizontal plate 14 and a first vertical plate 15 connected to the first horizontal plate 14 , an inverted L-shaped structure is formed between the first horizontal plate 14 and the first vertical plate 15 , and the first reinforcement member 11 is located on the side of the first horizontal plate 14 close to the accommodating space 3 .

[0050] Specifically, combined Figure 1 and Figure 2As shown, the upper frame 1 includes a first transverse plate 14 and a first vertical plate 15, the side of the first transverse plate 14 close to the first vertical plate 15 is fixedly connected to the side of the first vertical plate 15 close to the first transverse plate 14, and an inverted L-shaped structure is formed between the first transverse plate 14 and the first vertical plate 15, and the first reinforcing member 11 is located on the side of the first transverse plate 14 close to the accommodating space 3. Specifically, the first reinforcing member 11 can be directly fixedly connected to the side of the first vertical plate 15 close to the lower frame 2, which is conducive to fixing the first reinforcing member 11. Space can be reserved between the first reinforcing member 11 and the first transverse plate 14 to facilitate the placement of the first flexible pad 12; space can also be reserved between the first reinforcing member 11 and the photovoltaic module 4 to facilitate the placement of the second flexible pad 13. When the frame of the photovoltaic module 4 has no A surface, the first reinforcing member 11 can play the role of a local A surface in the photovoltaic module 4, thereby protecting the photovoltaic module 4. Optionally, the first transverse plate 14, the first vertical plate 15 and the first reinforcing member 11 adopt an integrated structure, so that the support performance of the upper frame 1 is good and not easy to deform.

[0051] Optionally, combined Figure 1 and Figure 2 As shown, the first flexible pad 12 is located between the first reinforcement 11 and the photovoltaic component 4, and the second flexible pad 13 is located between the first cross plate 14 and the first reinforcement 11. Through the cooperation between the first flexible pad 12 and the first reinforcement 11, and between the first reinforcement 11 and the second flexible pad 13, when the frame in the photovoltaic component 4 has no A side, the first flexible pad 12 can be directly bonded to the front of the photovoltaic component 4, and the second flexible pad 13 plays an auxiliary role in the photovoltaic component 4. The cooperation between the first reinforcement 11, the first flexible pad 12 and the second flexible pad 13 can have a shock-proof effect on the front of the photovoltaic component 4, thereby effectively protecting the photovoltaic component 4.

[0052] In an optional embodiment, the lower frame 2 includes a support member 23, the support member 23 includes a second horizontal plate 231 and a second vertical plate 232 connected to the second horizontal plate 231, the second vertical plate 232 is located on the side of the second horizontal plate 231 close to the photovoltaic component 4; an L-shaped structure is formed between the second horizontal plate 231 and the second vertical plate 232, and the second reinforcement member 21 is located on the side of the second horizontal plate 231 close to the photovoltaic component 4.

[0053] Specifically, combined Figure 1 and Figure 2As shown, the lower frame 2 includes a support member 23, and the support member 23 is used to support the photovoltaic module 4. The support member 23 includes a second horizontal plate 231 and a second vertical plate 232. The second horizontal plate 231 is fixedly connected to the side of the second vertical plate 232 close to the second horizontal plate 231. The second horizontal plate 231 and the second vertical plate 232 form an L-shaped structure. The second vertical plate 232 is located on the side of the second horizontal plate 231 close to the photovoltaic module 4. The extension direction of the second vertical plate 232 is the same as the extension direction of the second horizontal plate 231. Similarly, the second reinforcement 21 can be directly fixed on the inner wall of the second vertical plate 232. Since the area of ​​the lower frame 2 is larger, it can also be fixed between the second vertical plate 232 and other components of the lower frame 2 to make the second reinforcement 21 more firmly fixed. This embodiment does not make any specific limitation on this. The second reinforcement 21 can directly abut against the back of the photovoltaic component 4 to provide support to the photovoltaic component 4. A gap can also be reserved between the second reinforcement 21 and the second horizontal plate 231 to facilitate the subsequent installation of the third flexible pad 22.

[0054] Optionally, combined Figure 1 and Figure 2 As shown, the third flexible pad 22 is located between the second reinforcement 21 and the second cross plate 231. Since a gap is reserved between the second reinforcement 21 and the second cross plate 231, the third flexible pad 22 can be directly placed in the gap reserved between the second reinforcement 21 and the second cross plate 231. Through the same cooperation between the third flexible pad 22 and the second reinforcement 21, the photovoltaic module 4 can be shockproof; the first flexible pad 12 is located between the first reinforcement 11 and the photovoltaic module 4, and the second flexible pad 13 is located between the first cross plate 14 and the first reinforcement 11. When the laminate in the photovoltaic module 4 is subjected to a force in the direction of its own thickness, When deforming upward or downward, the first flexible pad 12 and the second flexible pad 13 are in soft contact with the first reinforcement 11, the first flexible pad 12 is in soft contact with the front of the photovoltaic module 4, the third flexible pad 22 is in soft contact with the second reinforcement 21, and the second reinforcement 21 is in soft contact with the back of the photovoltaic module 4. At the same time, the edge portions of the upper frame 1 and the lower frame 2 will not directly contact the laminate 41 in the photovoltaic module 4, thereby reducing the risk of the laminate 41 in the photovoltaic module 4 bursting due to stress concentration. Compared with the prior art, the risk of the laminate directly bearing all the shear stresses is greatly reduced, thereby reducing the risk of the laminate in the photovoltaic module 4 bursting.

[0055] In an optional embodiment, the lower frame 2 also includes a connecting member 24 connected to the support member 23, and a buckle 16 is provided on the side of the first horizontal plate 14 away from the first vertical plate 15. The first horizontal plate 14 is connected to the connecting member 24 through the buckle 16. Along the thickness direction of the photovoltaic component 4, the buckle 16 is located between the first horizontal plate 14 and the connecting member 24, and the cross-section of the buckle 16 is a barb shape.

[0056] Specifically, combined Figure 1 and Figure 2 As shown, the lower frame 2 also includes a connecting member 24, which is fixedly connected to the supporting member 23. A buckle 16 is provided on the first horizontal plate 14, and the buckle 16 is located on the side of the first horizontal plate 14 away from the first vertical plate 15. The buckle 16, the first horizontal plate 14 and the first vertical plate 15 can adopt an integrated structure, so that the support performance of the upper frame 1 is good and it is not easy to deform. The first horizontal plate 14 is connected to the connecting member 24 through the buckle 16. Optionally, a buckle groove 240 matching with the buckle 16 is provided on the connecting member 24, and the buckle 16 is located in the buckle groove 240. When the upper frame 1 and the lower frame 2 are buckled and fixed, the buckle 16 can extend into the buckle groove 240. Along the thickness direction of the photovoltaic module 4, the buckle 16 is located between the first horizontal plate 14 and the connecting member 24. The cross section of the buckle 16 is inverted. The buckle 16 can make the upper frame 1 and the lower frame 2 fixed more firmly.

[0057] Optionally, combined Figure 1 As shown, a limiting tooth 160 is provided on the outer wall of the buckle 16, and a limiting groove (not marked in the figure) matching with the limiting tooth 160 is provided on the side wall of the connecting member 24. When the upper frame 1 and the lower frame 2 are buckled and fixed, the buckle 16 extends into the buckle groove 240, and the limiting tooth 160 is engaged in the buckle groove 240, which can prevent the upper frame 1 and the lower frame 2 from separating.

[0058] The inventor discovered that Figure 3 It is a schematic diagram of the structure of the frame in the prior art; Figure 3 As shown, the existing frame is a galvanized aluminum-magnesium alloy steel edging. During the process of the laminate bearing the load, due to the short special-shaped frame, a large shear stress will be generated at the edge of the special-shaped frame, and the simple galvanized aluminum-magnesium alloy frame cannot directly withstand the shear stress; in addition, the frame 42' usually includes an A surface, a B surface and a C surface, and the edge of the laminate is completely covered in the frame 42'. Due to the existence of the A surface in the frame 42', not only will part of the light exposure be blocked, but also dust will easily accumulate on the front of the laminate. Therefore, it is a technical problem that needs to be solved urgently in this field.

[0059] Figure 4 It is a structural schematic diagram of a photovoltaic assembly provided by the utility model; Figure 5 This is a schematic diagram of a structure in which a photovoltaic module provided by the utility model is installed on a short frame; Figure 6 It is a structural schematic diagram of a laminate provided by the utility model; Figure 7 This is a schematic diagram of the structure of a frame provided by the utility model; Figure 4-Figure 7As shown, based on the above problems, this embodiment provides a photovoltaic component 4, which is placed in the accommodating space 3 of the short frame a during installation; the photovoltaic component 4 includes a laminate 41 and a frame 42, the frame 42 covers the circumferential edge of the laminate 41, the frame 42 can prevent water vapor and dust from penetrating into the laminate to affect the reliability of the component, and the frame is installed at the edge position around the laminate for protection; the frame 42 includes a bottom plate 420 and a side plate 421 connected to the bottom plate 420, the bottom wall of the periphery of the laminate 41 is placed on the bottom plate 420, and the side wall of the periphery of the laminate 41 is close to the side plate 421.

[0060] Specifically, continue to refer to Figure 4 As shown, the photovoltaic assembly 4 is placed in the accommodation space 3 of the short frame a during installation; Figure 5As shown, the photovoltaic module 4 includes a laminate 41 and a frame 42, and the frame 42 covers the circumferential edge of the laminate 41; the laminate 41 includes a front cover plate 410, a first packaging film 411, a battery string 412, a second packaging film 413 and a back cover plate 414 arranged in layers; the battery string 412 is formed by connecting a plurality of battery sheets (not shown in the figure), the front cover plate 410 can be glass, the back cover plate 414 can be glass or a back plate, and the first packaging film 411 and the second packaging film 413 can be ethylene-vinyl acetate copolymer (EVA) film, polyethylene octene co-elastic (POE) film or polyethylene terephthalate (PET) film. EVA (ethylene-vinyl acetate copolymer) has the advantages of excellent bonding performance, low melting temperature, good melt fluidity and softness, low cost, and easy construction. EVA material introduces vinyl acetate monomer into the molecular chain, which can reduce the high crystallinity and improve toughness, impact resistance, filler solubility and heat sealing performance; POE (random copolymer elastomer of ethylene and high-carbon α-olefin); the molecular structure of POE material gives it excellent mechanical properties, rheological properties and UV resistance, and it also has good affinity with polyolefins, good low-temperature toughness, and high performance-price ratio; PVB (polyvinyl butyral) material, PVB material is soluble in methanol, ethanol, ketones, halogenated alkanes, and aromatic hydrocarbon solvents, and has good solubility with phthalates, sebacate plasticizers, as well as nitrocellulose, phenolic resin, epoxy resin, etc. It has high transparency, cold resistance, impact resistance, UV radiation resistance, and good adhesion to metals, glass, wood, ceramics, fiber products, etc. The battery cell can be PERC (Passivated Emitter Rear Cell), TOPCon (Tunnel Oxide Passivated Contact), HJT (Heterojunction with Intrinsic Thin-film), IBC (Interdigitated Back Contact), perovskite, etc.

[0061] Combination Figure 5 and Figure 7As shown, in this embodiment, the frame 42 includes a bottom plate 420 and a side plate 421 connected to the bottom plate 420, and an L-shaped structure can be formed between the bottom plate 420 and the side plate 421. The bottom wall of the periphery of the laminate 41 is placed on the bottom plate 420, and the side wall of the periphery of the laminate 41 is close to the side plate 421. Silicone bonding can be used between the bottom plate 420 and the bottom wall of the periphery of the laminate 41, and silicone bonding can also be used between the side wall of the periphery of the laminate 41 and the side plate 421. It can be understood that the frame 42 has only a B side and a C side, but no A side. Since the frame 42 is a frame without an A side, the front cover plate 410 in the laminate 41 has no shielding material, so that the dirt on the surface of the laminate 41 can be smoothly separated from the component and discharged under the erosion of rainwater, avoiding water stains from being stored at the edge for a long time to soak the edge of the photovoltaic component 4, while increasing the area of ​​the laminate 41 receiving light, thereby improving the photovoltaic efficiency.

[0062] When assembling, combine Figure 4-Figure 6 As shown, the frame 42 wrapped with the laminate 41 is directly installed in the accommodating space 3, wherein the bottom plate 420 is directly abutted against the second reinforcement 21, the side plate 421 is abutted against the side wall of the connecting member 24 in the lower frame 2, and the front cover 410 is bonded to the first flexible pad 12 on the side away from the first packaging film 411 and the top surface of the side plate 421. In the process of the photovoltaic component 4 bearing the load, since the first flexible pad 12, the first reinforcement 11, the second flexible pad 13 and the first cross plate 14 are sequentially arranged above the edge of the laminate 41, and the bottom plate 420, the second reinforcement 21 and the third flexible pad 22 are sequentially designed below the edge of the laminate 41, the laminate bursting due to stress concentration is greatly reduced, and dust accumulation on the front cover can also be avoided.

[0063] It can be seen from the above embodiments that the photovoltaic assembly 4 provided in this embodiment achieves at least the following beneficial effects:

[0064] The present embodiment provides a photovoltaic component 4, which is placed in the accommodating space 3 of the short frame a during installation; the photovoltaic component 4 includes a laminate 41 and a frame 42, the frame 42 covers the circumferential edge of the laminate 41; the frame 42 includes a bottom plate 420 and a side plate 421 connected to the bottom plate 420, the bottom wall of the periphery of the laminate 41 is placed on the bottom plate 420, and the side wall of the periphery of the laminate 41 is close to the side plate 421. By adopting the above scheme, the frame 42 and the short frame cooperate with each other, which can not only reduce the shear stress at the edge between the frame 42 and the short frame, but also increase the light receiving area of ​​the laminate 41 due to the direct elimination of the frame A surface, improve the photovoltaic efficiency, and avoid the accumulation of dust on the front of the laminate.

[0065] Optionally, combined Figure 4and Figure 5 As shown, the frame 42 is made of galvanized aluminum-magnesium steel or aluminum alloy. Compared with steel, galvanized aluminum-magnesium steel and aluminum alloy have better elasticity, which helps prevent the frame from damaging the laminate 41.

[0066] Optionally, along the direction from the upper frame 1 to the lower frame 2 , the height of the side plate 421 may range from 0.5 mm to 1.3 mm.

[0067] Specifically, combined Figure 4 and Figure 5 As shown, along the direction from the upper frame 1 to the lower frame 2, if the height of the side panel 421 is less than 0.5mm, it is less than the thickness of the laminate 41, and part of the edge of the laminate 41 is not in contact with the side panel 421, and the protection of the laminate 41 is not utilized; along the direction from the upper frame 1 to the lower frame 2, if the height of the side panel 421 is greater than 0.5mm, it is greater than the thickness of the laminate 41, and the top surface of the side panel 421 cannot be flush with the front surface of the laminate 41, which is not conducive to protecting the laminate 41 and can also increase the cost. Therefore, the height range of the side panel 421 along the direction from the upper frame 1 to the lower frame 2 is designed to be 0.5mm~1.3mm, so as to ensure that the front surface of the laminate 41 is flush with the top surface of the side panel 421 as much as possible, and the subsequent first flexible pad 12 can be directly bonded to the front surface of the laminate 41 and the top surface of the side panel 421, which can more effectively protect the laminate 41 and reduce the cost. Specifically, along the direction from the upper frame 1 to the lower frame 2, the height of the side plate 421 can range from 0.5 mm, 0.7 mm, 0.9 mm, 1.1 mm or 1.3 mm.

[0068] Figure 8 It is a structural schematic diagram of a photovoltaic system provided by the utility model; Fig. 9 yes Figure 8 A partial enlarged view of the middle part; Fig.10 This is a schematic diagram of the structure of a photovoltaic system provided by the utility model in another direction; Fig.11 yes Fig.10 A partial enlarged view of point B in the middle; Fig.12 This is a schematic diagram of the structure of a short frame and a photovoltaic module provided by the utility model, referring to Figure 8-Figure 12 As shown, this embodiment provides a photovoltaic system, including a bracket (not shown in the figure), the above-mentioned photovoltaic component 4 and the above-mentioned short frame a; the photovoltaic component 4 is placed in the accommodating space 3, wherein when the first reinforcement 11 is located on the upper frame 1 close to the photovoltaic component 4 and the first flexible pad 12 is provided on the side, the first flexible pad 12 is placed on the top surface of the laminate 41, and the bottom surface of the frame 42 is connected to the second reinforcement 21; the lower frame 2 is connected to the bracket.

[0069] Specifically, combined Figure 8As shown, the photovoltaic system includes a bracket, including the bracket, the photovoltaic assembly 4 and the short frame a, combined with Figure 4 As shown, the photovoltaic module 4 includes a laminate 41 and a frame 42, the frame 42 covers the circumferential edge of the laminate 41, wherein the frame 42 includes two long frame 42a and two short frame 42b, the two long frame 42a are respectively mounted with short frames a, the number of short frames a can be two, the two short frames a can be arranged along the length direction of the long frame 42a, the bracket is located below the photovoltaic module 4, and the bracket is assembled with the lower frame 2 in the short frame a;

[0070] Combination Figure 4 , Figure 5 and Fig.12 As shown, the photovoltaic component 4 is placed in the accommodating space 3 of the short frame a, wherein when the first reinforcement 11 is located on the upper frame 1 and the first flexible pad 12 is provided on the side close to the photovoltaic component 4, the first flexible pad 12 is placed on the top surface of the laminate 41, and the first flexible pad 12 can be directly bonded to the top surface of the laminate 41, and the bottom surface of the frame 42 directly abuts against the side of the second reinforcement 21 close to the first reinforcement 11. Subsequently, when the laminate 41 is deformed upward or downward according to the thickness direction of the laminate 41, the shear stress of the laminate 41 can be reduced, thereby avoiding the risk of bursting of the laminate 41.

[0071] In an alternative embodiment, in combination Figure 2 and Fig.12 As shown, when the upper frame 1 includes the first transverse plate 14 and the lower frame 2 includes the second transverse plate 231, along the length direction of the short frame a, the length of the first transverse plate 14 is equal to the length of the second transverse plate 231; when the first reinforcement 11 is located on the side of the upper frame 1 close to the photovoltaic component 4 and the first flexible pad 12 is provided, and the second reinforcement 21 is located on the side of the lower frame 2 away from the photovoltaic component 4 and the third flexible pad 22 is provided, along the length direction of the short frame a, the lengths of the first reinforcement 11, the second reinforcement 21 and / or the first flexible pad 12 are equal; along the length direction of the short frame a, the length of the first reinforcement 11 is greater than the length of the first transverse plate 14. Specifically, along the length direction of the short frame a, the upper frame 1 introduces The length of the first reinforcement 11 and the first flexible pad 12 is consistent with the length of the second reinforcement 21 introduced in the lower frame 2, the length of the first transverse plate 14 in the upper frame 1 and the second transverse plate 231 in the lower frame 2 are consistent, while the length of the first reinforcement 11 in the upper frame 1 is inconsistent with the length of the first transverse plate 14 in the upper frame 1. For example, along the length direction of the short frame a, the length of the first reinforcement 11 in the upper frame 1 is greater than the length of the first transverse plate 14 in the upper frame 1. Along the length direction of the short frame a, since the lengths of the first reinforcement 11, the second reinforcement 21 and the first flexible pad 12 are extended, the frame 42 is subjected to the shear stress at the edge of the short frame a, thereby reducing the incidence of bursting.

[0072] In an optional embodiment, along the length direction of the short frame a, the length of the first transverse plate 14 and / or the second transverse plate 231 is L1, the length of the first reinforcement 11, the second reinforcement 21 and / or the first flexible pad 12 is L2, and L2-L1≥100mm.

[0073] Specifically, combined Figure 8-Figure 11 As shown, if along the length direction of the short frame a, the length of the first horizontal plate 14 and / or the second horizontal plate 231 is L1, and the length of the first reinforcement 11, the second reinforcement 21 and / or the first flexible pad 12 is L2, if L2-L1 is less than 100mm, the length of the first reinforcement 11, the first flexible pad 12 and the second reinforcement 21 along the length direction of the short frame a is too short, and there will be shear stress at the edge position where the short frame a is connected to the frame 42. The frame 42 cannot directly withstand the shear stress, resulting in a bursting phenomenon. Therefore, L2-L1 is set to be ≥100mm. By extending the length of the first reinforcement 11, the first flexible pad 12 and the second reinforcement 21 along the length direction of the short frame a, the shear stress at the edge position where the short frame a is connected to the frame 42 can be more effectively reduced, thereby more effectively reducing the bursting phenomenon of the laminate 41 due to the large shear stress.

[0074] Optionally, combined Figure 8 and Fig.10 As shown, the length of the laminate 41 is L3, 3≤L3 / L2≤7.14. By adopting the above scheme, the length along the length direction of the short frame a makes the length of the first reinforcement 11, the first flexible pad 12 and the second reinforcement 21 greater than the length of the first cross plate 14 and the second cross plate 231, and the maximum length of the first reinforcement 11, the first flexible pad 12 and the second reinforcement 21 is controlled to be less than the maximum length of the laminate 41, which can protect the laminate 41 while reducing costs.

[0075] It can be seen from the above embodiments that the short frame for fixing a photovoltaic module, the photovoltaic module and the photovoltaic system provided by the utility model achieve at least the following beneficial effects:

[0076] The utility model provides a short frame, a photovoltaic module and a photovoltaic system for fixing a photovoltaic module, wherein the short frame for fixing the photovoltaic module comprises an upper frame and a lower frame that are interlocked; a storage space for placing the photovoltaic module is formed between the upper frame and the lower frame; a first reinforcement member is arranged on a side of the upper frame close to the storage space, and a second reinforcement member corresponding to the first reinforcement member is arranged on a side of the lower frame close to the storage space, the extension direction of the first reinforcement member is the same as the extension direction of the second reinforcement member, and the photovoltaic module is fixed between the first reinforcement member, a part of the side wall of the lower frame and the second reinforcement member; by adopting the above scheme, by respectively introducing the first reinforcement member and the second reinforcement member into the upper frame and the lower frame, not only can the photovoltaic module be effectively fixed, thereby facilitating the protection effect of the photovoltaic module, but also the photovoltaic module can be partially strengthened, which is facilitating the improvement of the reliability of the photovoltaic module, and at the same time, the shear stress at the edge position where the short frame and the photovoltaic module are connected is subsequently reduced as much as possible, thereby reducing the risk of explosion of the photovoltaic module as much as possible.

[0077] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A short frame for fixing a photovoltaic module, characterized in that: It comprises an upper frame and a lower frame which are buckled with each other; a receiving space for placing photovoltaic components is formed between the upper frame and the lower frame; A first reinforcement is arranged on the side of the upper frame close to the accommodating space, and a second reinforcement corresponding to the first reinforcement is arranged on the side of the lower frame close to the accommodating space. The extension direction of the first reinforcement is the same as the extension direction of the second reinforcement, and the photovoltaic module is fixed between the first reinforcement, part of the side wall of the lower frame and the second reinforcement.

2. The short frame for fixing a photovoltaic module according to claim 1, characterized in that: The first reinforcement is provided with a first flexible pad on a side of the upper frame close to the photovoltaic assembly, and the first reinforcement is provided with a second flexible pad on a side of the upper frame away from the photovoltaic assembly; The second reinforcement is provided with a third flexible pad on a side of the lower frame away from the photovoltaic assembly.

3. The short frame for fixing a photovoltaic module according to claim 2, characterized in that: The upper frame includes a first transverse plate and a first vertical plate connected to the first transverse plate, an inverted L-shaped structure is formed between the first transverse plate and the first vertical plate, and the first reinforcement is located on a side of the first transverse plate close to the accommodating space.

4. The short frame for fixing a photovoltaic module according to claim 3, characterized in that: The first flexible pad is located between the first reinforcement and the photovoltaic assembly, and the second flexible pad is located between the first transverse plate and the first reinforcement.

5. The short frame for fixing a photovoltaic module according to claim 3, characterized in that: The lower frame includes a support member, which includes a second horizontal plate and a second vertical plate connected to the second horizontal plate, and the second vertical plate is located on the side of the second horizontal plate close to the photovoltaic component; an L-shaped structure is formed between the second horizontal plate and the second vertical plate, and the second reinforcement member is located on the side of the second horizontal plate close to the photovoltaic component.

6. The short frame for fixing a photovoltaic module according to claim 5, characterized in that: The third flexible pad is located between the second reinforcement member and the second cross plate.

7. The short frame for fixing a photovoltaic module according to claim 5, characterized in that: The lower frame also includes a connecting member connected to the supporting member. A buckle is provided on the side of the first horizontal plate away from the first vertical plate. The first horizontal plate is connected to the connecting member through the buckle. Along the thickness direction of the photovoltaic module, the buckle is located between the first horizontal plate and the connecting member, and the cross-section of the buckle is a barb shape.

8. A photovoltaic module, characterized in that: The photovoltaic module is placed in the accommodation space of the short frame during installation, and the short frame is the short frame according to any one of claims 1 to 7; It comprises a laminate and a frame, wherein the frame covers the circumferential edge of the laminate; The frame includes a bottom plate and a side plate connected to the bottom plate, the bottom wall of the periphery of the laminate is placed on the bottom plate, and the side wall of the periphery of the laminate is close to the side plate.

9. A photovoltaic system, characterized in that: Comprising a bracket, the photovoltaic module of claim 8 and the short frame of any one of claims 1 to 7; The photovoltaic assembly is placed in the accommodation space, wherein when the first reinforcement is located on the side of the upper frame close to the photovoltaic assembly and a first flexible pad is provided, the first flexible pad is placed on the top surface of the laminate, and the bottom surface of the frame is connected to the second reinforcement; The lower frame is connected to the bracket.

10. The photovoltaic system according to claim 9, characterized in that: When the upper frame includes a first transverse plate and the lower frame includes a second transverse plate, along the length direction of the short frame, the length of the first transverse plate is equal to the length of the second transverse plate; When the first reinforcement is located on the side of the upper frame close to the photovoltaic assembly and a first flexible pad is provided, and the second reinforcement is located on the side of the lower frame away from the photovoltaic assembly and a third flexible pad is provided, along the length direction of the short frame, the lengths of the first reinforcement, the second reinforcement and / or the first flexible pad are equal; Along the length direction of the short frame, the length of the first reinforcement member is greater than the length of the first transverse plate.

11. The photovoltaic system according to claim 10, characterized in that: Along the length direction of the short frame, the length of the first transverse plate and / or the second transverse plate is L1, the length of the first reinforcement member, the second reinforcement member and / or the first flexible pad is L2, and L2-L1≥100 mm.

12. The photovoltaic system according to claim 11, characterized in that: The length of the laminate is L3, 3≤L3 / L2≤7.14.

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