Photovoltaic module and photovoltaic component

Abstract

The photovoltaic module comprises a laminated part and a back frame, the back frame is arranged on the backlight surface of the laminated part, the possibility that the back frame shields the light receiving surface of the laminated part can be reduced, the light receiving area of the laminated part is improved, and then the power generation efficiency of the photovoltaic module is improved. The back frame comprises a first edge, a second edge and a third edge, the first edge and the third edge are arranged at intervals in the thickness direction of the photovoltaic module, one end of the second edge is connected with the first edge, the other end of the second edge is connected with the third edge, and the C-shaped back frame is formed. The first edge of the back frame is connected with the backlight surface of the laminated piece. In the width direction of the back frame, the width of the first edge is larger than that of the third edge, so that the area of the connecting face of the back frame and the laminated part is increased, the possibility of falling off of the back frame is reduced, and the reliability of the photovoltaic module is improved.

Description

Technical Field

[0001] The present application relates to the field of solar power generation, and in particular to a photovoltaic module and a photovoltaic component. Background Art

[0002] As the world's conventional energy supply becomes increasingly scarce and environmental pollution becomes increasingly prominent, humans have realized the crisis of energy and environment and have begun to seek renewable clean energy to replace conventional energy. Solar photovoltaic power generation has become an emerging industry that is widely concerned and focused on by countries around the world because of its cleanliness, safety, convenience, and efficiency. At present, photovoltaic modules used for solar photovoltaic power generation include laminates and frames. The edges of the laminates extend into the frames to protect the laminates and increase the strength of the edges of the laminates. The laminates are used to absorb sunlight, and the frames will block the edges of the laminates, resulting in a reduction in the light-receiving area of ​​the laminates, which in turn will reduce the power generation efficiency of the photovoltaic modules. Summary of the invention

[0003] In view of this, the present application provides a photovoltaic module and a photovoltaic component, which are used to solve the problem that the photovoltaic module has low power generation efficiency due to the frame blocking the edge of the laminate.

[0004] In a first aspect, an embodiment of the present application provides a photovoltaic assembly, the photovoltaic assembly comprising:

[0005] laminates;

[0006] A back frame, the back frame being arranged on the backlight surface of the laminate;

[0007] Among them, the back frame includes a first side, a second side and a third side. Along the thickness direction of the photovoltaic component, the first side and the third side are arranged at intervals, one end of the second side is connected to the first side, and the other end is connected to the third side. Along the width direction of the back frame, the width of the first side is greater than the width of the third side, and the laminate is connected to the first side.

[0008] In a possible embodiment, the width of the first side is 10 mm to 20 mm.

[0009] In a possible embodiment, the first side, the second side and the third side enclose a cavity; the first side includes a first protrusion, the third side includes a second protrusion, and the first protrusion and the second protrusion both extend into the cavity.

[0010] In a possible embodiment, both the first protrusion and the second protrusion are inclined toward a direction close to the second edge.

[0011] In a possible embodiment, the second edge is bent toward the cavity to form a first recessed portion.

[0012] In a possible embodiment, a second recessed portion is provided on a side of the first edge facing the laminate.

[0013] In a possible embodiment, a bending portion is provided at one end of the first side away from the second side, and the bending portion is bent toward a side away from the laminate.

[0014] In the second aspect, an embodiment of the present application also provides a photovoltaic component, which includes a clamp, a hook plate, a pin block and a photovoltaic component, the hook plate and the pin block are both installed on the clamp, the photovoltaic component is any one of the photovoltaic components described above, the back frame is installed between the hook plate and the pin block, the hook plate abuts against the third edge, and the pin block abuts against the second edge.

[0015] In a possible embodiment, a first elastic member is disposed on the hook plate, and the first elastic member is located between the hook plate and the third side.

[0016] In a possible embodiment, a second elastic member is disposed between the pin block and the second edge.

[0017] The present application relates to a photovoltaic module and a photovoltaic component. The photovoltaic module includes a laminate and a back frame. The back frame is arranged on the backlight surface of the laminate, which can reduce the possibility of the back frame blocking the light-receiving surface of the laminate, increase the light-receiving area of ​​the laminate, and thus improve the power generation efficiency of the photovoltaic module. The back frame includes a first side, a second side and a third side. Along the thickness direction of the photovoltaic module, the first side and the third side are arranged at intervals, one end of the second side is connected to the first side, and the other end is connected to the third side to form a C-shaped back frame. The first side in the back frame is connected to the backlight surface of the laminate. Along the width direction of the back frame, the width of the first side is greater than the width of the third side, so as to increase the area of ​​the connection surface between the back frame and the laminate, reduce the possibility of the back frame falling off, and help improve the reliability of the photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 A schematic diagram of the structure of a back frame provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the structure of a photovoltaic module provided in an embodiment of the present application;

[0021] Figure 3A schematic diagram of the structure of the back frame and the corner bracket provided in the embodiment of the present application;

[0022] Figure 4 A cross-sectional view of a back frame and a corner bracket provided in an embodiment of the present application;

[0023] Figure 5 A cross-sectional view of an embodiment of a photovoltaic component provided in an embodiment of the present application;

[0024] Figure 6 A cross-sectional view from another angle of an embodiment of a photovoltaic component provided in an embodiment of the present application;

[0025] Figure 7 for Figure 6 A partial enlarged view of an embodiment at position I in the middle;

[0026] Figure 8 for Figure 6 A partial enlarged view of another embodiment at position I in the middle;

[0027] Fig. 9 A cross-sectional view of another embodiment of a photovoltaic component provided in an embodiment of the present application;

[0028] Fig.10 A cross-sectional view from another angle of another embodiment of a photovoltaic component provided in an embodiment of the present application;

[0029] Fig.11 A cross-sectional view of another embodiment of a photovoltaic component provided in an embodiment of the present application;

[0030] Fig.12 A schematic diagram of the structure of the hook plate and the pin block in the photovoltaic component provided in the embodiment of the present application.

[0031] Reference numerals:

[0032] 100- Photovoltaic modules;

[0033] 200- Photovoltaic components;

[0034] 1-Laminate;

[0035] 11-battery cell;

[0036] 12-front cover;

[0037] 13- back cover;

[0038] 2-Back frame;

[0039] 21- first side;

[0040] 211- first protrusion;

[0041] 212- second recessed portion;

[0042] 213-bending portion;

[0043] 22- Second side;

[0044] 221- first recessed portion;

[0045] 23- third side;

[0046] 231- second protrusion;

[0047] 24- cavity;

[0048] 25- positioning protrusion;

[0049] 3- Adhesive parts;

[0050] 4-Clamp;

[0051] 41- first clamping portion;

[0052] 411-first installation part;

[0053] 42- second clamping portion;

[0054] 421- second mounting portion;

[0055] 43-first fastener;

[0056] 44- second fastener;

[0057] 5-hook plate;

[0058] 51- first connecting portion;

[0059] 52- second connecting portion;

[0060] 53- Accommodation space;

[0061] 54- first hook plate;

[0062] 55-second hook plate;

[0063] 6-pin block;

[0064] 61- first limiting portion;

[0065] 62- second limiting portion;

[0066] 63-first pin block;

[0067] 64-second pin block;

[0068] 7-first elastic member;

[0069] 8- second elastic member;

[0070] 9- Color steel tile;

[0071] 91-lock edge;

[0072] 10- Angle code. DETAILED DESCRIPTION

[0073] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0074] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0075] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0076] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0077] like Figure 1 and Figure 2 As shown, the embodiment of the present application provides a photovoltaic module 100, including a laminate 1 and a back frame 2, wherein the back frame 2 is arranged on the backlight surface of the laminate 1. The laminate 1 includes a cell 11, which converts solar energy into electrical energy by using the photovoltaic effect.

[0078] The present application does not limit the structure of the battery cell 11. The types of the battery cell 11 include but are not limited to Passivated Emitter Rear Cell (PERC), Tunnel Oxide Passivated Contact (TOPCon), Heterojunction with Intrinsic Thin-film (HJT), Interdigitated Back Contact (IBC), perovskite battery, etc.

[0079] For PERC cells, along the thickness direction, PERC cells include front surface metal silver electrode, front surface silicon nitride passivation layer, phosphorus layer emitter, P-type base silicon layer, local aluminum back field, metal aluminum back electrode, back passivation layer (Al2O3 / SiNx). PERC cells use a passivation film to passivate the back, replacing the full aluminum back field, enhancing the internal back reflection of light in the silicon base, reducing the recombination rate on the back, and increasing the efficiency of the cell by 0.5%-1%.

[0080] For TOPCon cells, along the thickness direction, TOPCon cells include metal silver electrodes, front surface silicon nitride passivation layers, boron-doped emitters, N-type base silicon layers, diffused doping layers, ultra-thin silicon oxide, doped polysilicon, silicon nitride, and metal silver electrodes. The back of the cell is composed of a layer of ultra-thin silicon oxide (1nm to 2nm) and a layer of phosphorus-doped microcrystalline amorphous mixed Si film, which together form a passivation contact structure. This structure can block the recombination of minority carrier holes and increase the open circuit voltage and short circuit current of the cell. The ultra-thin oxide layer allows majority electrons to tunnel into the polysilicon layer while blocking the recombination of minority carrier holes. The good passivation effect of ultra-thin silicon oxide and heavily doped silicon film causes the energy band on the silicon wafer surface to bend, thereby forming a field passivation effect, greatly increasing the probability of electron tunneling, reducing contact resistance, and increasing the open circuit voltage and short circuit current of the cell, thereby improving the cell conversion efficiency.

[0081] For HJT cells, along the thickness direction, the HJT cells include a front low-temperature silver electrode, a front conductive film, an N-type amorphous silicon film, an intrinsic amorphous silicon film, an N-type base silicon layer, an intrinsic amorphous silicon film, a P-type amorphous silicon film, a back conductive film, and a back low-temperature silver electrode.

[0082] For IBC cells, along the thickness direction, IBC cells include silicon nitride anti-layer, N+ front surface field, N-type base silicon layer, P+ emitter, N+ back field, aluminum oxide passivation layer, silicon nitride anti-reflection layer, and metal silver electrode. IBC cells use ion implantation technology to obtain P and N regions with good uniformity and precisely controllable junction depth. There is no grid line blocking on the front of the cell, which can eliminate the shading current loss of the metal electrode and achieve the maximum utilization of incident photons. The short-circuit current can be increased by about 7% compared with conventional solar cells; due to the back contact structure, there is no need to consider the grid line blocking problem, and the grid line ratio can be appropriately widened, thereby reducing the series resistance and having a high fill factor; the surface passivation and surface light trapping structure can be optimized to obtain a lower front surface recombination rate and surface reflection.

[0083] For perovskite cells, along the thickness direction, the perovskite cell includes substrate material, conductive film, electron transport layer (titanium dioxide), perovskite absorption layer (hole transport layer), and metal cathode. Perovskite materials have a high light absorption coefficient and a long carrier diffusion distance. After the photons absorbed by the perovskite material are converted into electrons, they are easily collected by the electrode with low loss, so they can generate higher photoelectric voltage and current, making perovskite show higher photoelectric conversion efficiency.

[0084] The cell 11 includes a light-receiving surface and a backlight surface, wherein the light-receiving surface is used to absorb sunlight, a front cover plate 12 is arranged on the light-receiving surface of the cell 11, an adhesive film is arranged between the cell 11 and the front cover plate 12, a back cover plate 13 is arranged on the backlight surface, an adhesive film is also arranged between the cell 11 and the back cover plate 13, after lamination by a laminating device, the adhesive film melts, and the cell 11, the front cover plate 12 and the back cover plate 13 are bonded to form a laminate 1, wherein the light-receiving surface of the cell 11 is the light-receiving surface of the laminate 1, and the light-receiving surface of the cell 11 is the backlight surface of the laminate 1. The back frame 2 can be arranged on the light-receiving surface of the laminate 1 by bonding, which can reduce the possibility of the back frame 2 blocking the light-receiving surface of the laminate 1, increase the light-receiving area of ​​the laminate 1, and further improve the power generation efficiency of the photovoltaic module 100.

[0085] The back frame 2 includes a first side 21, a second side 22 and a third side 23. The first side 21 and the third side 23 are arranged at intervals along the thickness direction of the photovoltaic module 100. One end of the second side 22 is connected to the first side 21, and the other end is connected to the third side 23, forming a C-shaped back frame 2. The first side 21 in the back frame 2 is connected to the backlight surface of the laminate 1. An adhesive 3 may be provided between the first side 21 and the laminate 1, so that the back frame 2 and the laminate 1 are bonded and fixed by the adhesive 3. Along the width direction of the back frame 2, the width of the first side 21 is greater than the width of the third side 23, so as to increase the area of ​​the connection surface between the back frame 2 and the laminate 1, reduce the possibility of the back frame 2 falling off, and help improve the reliability of the photovoltaic module 100.

[0086] In a possible embodiment, the width of the first side 21 is 10 mm to 20 mm. The larger the width of the first side 21, the greater the connection strength between the back frame 2 and the laminate 1. After multiple photovoltaic components 100 are connected into a photovoltaic structure 200 through the back frame 2, the greater the load that a single photovoltaic component 100 can withstand.

[0087] If the width of the first side 21 is less than 10 mm, the connection strength between the back frame 2 and the laminate 1 is relatively small, and the load that the photovoltaic module 100 can withstand is relatively low. When the photovoltaic module 100 is subjected to a large external force, the laminate 1 and the back frame 2 are easily separated; if the width of the first side 21 is greater than 20 mm, the production cost of the back frame 2 will increase. When the photovoltaic module 100 is a double-glass module, the backlight surface of the laminate 1 can also absorb sunlight. If the overlapping area between the first side 21 and the backlight surface of the laminate 1 is too large, it will affect the power generation efficiency of the photovoltaic module 100. Therefore, the width of the first side 21 can be 10 mm, 15 mm, 20 mm, etc., so that the photovoltaic module 100 can withstand a larger load and reduce the production cost of the back frame 2.

[0088] like Figure 2 As shown, in a possible embodiment, one end of the second side 22 in the back frame 2 protrudes from the edge of the laminate 1, which is convenient for grabbing during transportation. During the transportation process, the possibility of external collision with the laminate 1 causing damage to the laminate 1 can be reduced.

[0089] like Figure 1 and Figure 2 As shown, in a possible embodiment, a second recessed portion 212 is provided on a side of the first edge 21 facing the laminate 1 , and the second recessed portion 212 is recessed in a direction away from the laminate 1 .

[0090] The first edge 21 and the laminate 1 are connected by an adhesive 3 , and a recess is provided on the first edge 21 so that more adhesives 3 can be accommodated between the first edge 21 and the laminate 1 , thereby increasing the connection strength between the laminate 1 and the back frame 2 .

[0091] like Figure 1 and Figure 2 As shown, in a possible embodiment, a bending portion 213 is provided at one end of the first edge 21 away from the second edge 22, and the bending portion 213 is bent toward a side away from the laminate 1, and the bending angle is less than 180°.

[0092] The end of the first edge 21 is bent to form a bent portion 213, which can improve the strength of the first edge 21 and reduce the possibility of deformation of the first edge 21. If the bending angle is greater than or equal to 180°, the bent portion 213 is attached to or interferes with the side of the first edge 21 away from the laminate 1, resulting in reduced strength of the first edge 21.

[0093] The bent portion 213 is bent in a direction away from the laminate 1 to form an arc edge at the end of the first side 21, so that the excess adhesive 3 between the laminate 1 and the back frame 2 can flow out from the arc edge when it is not cured.

[0094] like Figure 2 and Figure 3As shown, in a possible embodiment, back frames 2 are provided at the edge positions of the laminate 1 to facilitate the transportation and installation of the photovoltaic module 100. Taking the rectangular laminate 1 as an example, four back frames 2 are respectively bonded to the four sides of the laminate 1, and the edge of the back frame 2 is set as a bevel to reduce the possibility of interference between two adjacent back frames 2 after splicing. Preferably, the bevel can be 45°. An angle code 10 is provided between adjacent back frames 2, and the two ends of the angle code 10 extend into the cavity 24 of the two adjacent back frames 2 respectively. One side of the angle code 10 is serrated, and the serrated side contacts the inner wall of the cavity 24 to increase the friction between the angle code 10 and the back frame 2, so that the two adjacent back frames 2 can be fixed by the angle code 10.

[0095] like Figure 4 As shown, after the corner code 10 extends into the cavity 24, the second side 22 and / or the third side 23 are pressed and deformed, so that a positioning protrusion 25 extending toward the cavity 24 is formed on the second side 22 and / or the third side 23. The positioning protrusion 25 can squeeze the corner code 10 so that the corner code 10 is fixed to the cavity 24, which is beneficial to improving the reliability of the photovoltaic module 100.

[0096] like Figure 5 , Figure 6 and Figure 7 As shown, the embodiment of the present application further provides a photovoltaic component 200, including a clamp 4, a hook plate 5, a pin block 6 and a photovoltaic component 100, and the photovoltaic component 100 is any one of the photovoltaic components 100 described above.

[0097] A plurality of color steel tiles 9 are installed on the ground or the main body of the building, and adjacent color steel tiles 9 overlap each other, and the overlapped part is bent and rolled to form a lock edge 91. The clamp 4 includes a first clamping portion 41 and a second clamping portion 42. Along the width direction X of the photovoltaic component 200, the first clamping portion 41 and the second clamping portion 42 are respectively located on both sides of the lock edge 91, and the lock edge 91 is clamped to install the clamp 4 on the color steel tile 9. The first clamping portion 41 includes a first mounting portion 411, and the second clamping portion 42 includes a second mounting portion 421. The first mounting portion 411 and the second mounting portion 421 both extend along the width direction X of the photovoltaic component 200 and overlap each other. The clamp 4 also includes a first fastener 43, which can be a bolt structure, passes through the overlapping area of ​​the first mounting portion 411 and the second mounting portion 421, and is tightened to fix the relative position of the first clamping portion 41 and the second clamping portion 42.

[0098] Along the height direction Z of the photovoltaic component 200, the hook plate 5 and the pin block 6 are sequentially arranged on the first mounting portion 411, and are both fixed by the first fastener 43. The hook plate 5 includes a first connecting portion 51 and a second connecting portion 52. Along the length direction Y of the photovoltaic component 200, the first connecting portion 51 and the second connecting portion 52 are respectively located on both sides of the clamp 4, and the first connecting portion 51 and the second connecting portion 52 are both bent toward the direction close to the pin block 6 to form an accommodation space 53. The pin block 6 includes a first limiting portion 61 and a second limiting portion 62. Along the length direction Y of the photovoltaic component 200, the first limiting portion 61 and the second limiting portion 62 are respectively located on both sides of the clamp 4 and extend toward the direction close to the accommodation space 53. Along the length direction Y of the photovoltaic component 200, photovoltaic modules 100 are installed on both sides of the clamp 4. Taking one side as an example, at least part of the back frame 2 in the photovoltaic module 100 is located in the accommodating space 53, and the first connecting portion 51 in the hook plate 5 abuts against the third side 23, and the first limiting portion 61 in the pin block 6 abuts against the second side 22 to limit the position of the photovoltaic module 100, so that the back frame 2 is fixed between the first connecting portion 51 and the first limiting portion 61. Similarly, the back frame 2 in the photovoltaic module 100 on the other side of the clamp 4 is fixed between the second connecting portion 52 and the second limiting portion 62.

[0099] like Figure 6 and Figure 7 As shown, in a possible embodiment, the first side 21, the second side 22 and the third side 23 enclose a cavity 24, and the cavity 24 is a semi-open structure, and has an opening on the side opposite to the second side 22. The first side 21 includes a first protrusion 211, and the third side 23 includes a second protrusion 231. The first protrusion 211 and the second protrusion 231 are located at the opening position and both extend into the cavity 24.

[0100] When assembling the photovoltaic component 200, the first connection portion 51 or the second connection portion 52 in the hook plate 5 extends from the opening into the cavity 24 to limit the position of the photovoltaic assembly 100 along the height direction Z of the photovoltaic component 200. The first protrusion 211 and the second protrusion 231 extend into the cavity 24, which can reduce the possibility of the first connection portion 51 or the second connection portion 52 escaping from the cavity 24.

[0101] The second protrusion 231 is located at one end of the third side 23 away from the second side 22 and can be formed by bending the third side 23 . Therefore, the second protrusion 231 can also improve the strength of the third side 23 and reduce the possibility of deformation of the third side 23 .

[0102] like Figure 6 and Figure 7 As shown, in a possible embodiment, the first protrusion 211 and the second protrusion 231 are both inclined toward a direction close to the second edge 22 .

[0103] When assembling the photovoltaic component 200, the first connection part 51 or the second connection part 52 extends from the opening into the cavity 24, and the first protrusion 211 and the second protrusion 231 are inclined toward the direction close to the second edge 22 to form a guide surface, which facilitates the first connection part 51 or the second connection part 52 to slide into the cavity 24 along the guide surface. After the first connection part 51 or the second connection part 52 extends into the cavity 24, the possibility of the first connection part 51 or the second connection part 52 slipping out of the cavity 24 can be reduced.

[0104] like Figure 7 As shown, in a possible embodiment, along the thickness direction Z of the back frame 2 , the length of the bending portion 213 extending is less than the length of the first protruding portion 211 extending, so as to reduce the possibility of interference when the first connecting portion 51 or the second connecting portion 52 extends into the cavity 24 .

[0105] like Figure 1 and Figure 7 As shown, in a possible embodiment, the second side 22 is bent toward the direction close to the cavity 24 , and a first recessed portion 221 is formed on a side of the second side 22 away from the cavity 24 .

[0106] A first recessed portion 221 is formed on the side of the second side 22 away from the cavity 24. After the photovoltaic component 200 is assembled, the pin block 6 abuts against the second side 22, and the first limiting portion 61 or the second limiting portion 62 can extend into the first recessed portion 221 to limit the position of the photovoltaic component 100 along the length direction Y. The second side 22 is bent toward the side close to the cavity 24, which can also improve the strength of the second side 22 and reduce the possibility of deformation of the back frame 2.

[0107] like Figure 6 and Figure 7 As shown, in a possible embodiment, the first connection portion 51 and the second connection portion 52 in the hook plate 5 are bent toward the direction close to the pin block 6, so that the first connection portion 51 and the second connection portion 52 are arc-shaped facing the inner wall of the accommodating space 53, and the third side 23 of the back frame 2 is provided with an arc-shaped outer edge on the side close to the hook plate 5, so that the back frame 2 can fit with the inner wall of the accommodating space 53 and can slide along the inner wall of the accommodating space 53.

[0108] When the photovoltaic component 200 is in an environment with high wind speed, there will be a large difference in air flow rate on both sides of the photovoltaic component 100 in the thickness direction, so that the photovoltaic component 100 is subjected to a force in the direction away from the color steel tile 9. The back frame 2 and the inner wall of the accommodating space 53 are matched through the arc surface, so that the back frame 2 can rotate clockwise or counterclockwise in the accommodating space 53, so as to reduce the stress concentration in the photovoltaic component 100 and reduce the possibility of damage to the photovoltaic component 100 or explosion.

[0109] like Figure 7As shown, in a possible embodiment, the hook plate 5 is provided with a first elastic member 7, and the first elastic member 7 is bonded to the first connection portion 51 and / or the second connection portion 52 of the hook plate 5. After the photovoltaic assembly 100 is installed on the hook plate 5, the first elastic member 7 is located between the hook plate 5 and the third side 23.

[0110] Under the action of gravity, the third edge 23 in the back plate will press the first elastic member 7. The first elastic member 7 can be a film structure with a large friction coefficient, which can reduce the possibility of the photovoltaic assembly 100 sliding along the width direction X of the photovoltaic component 200, so as to improve the stability of the photovoltaic component 200. The thickness of the first elastic member 7 is small. When the photovoltaic assembly 100 is subjected to a force away from the color steel tile 9, the third edge 23 can be released from contact with the first elastic member 7, so that the back frame 2 can rotate clockwise or counterclockwise in the accommodating space 53, so as to reduce the stress concentration in the photovoltaic assembly 100 and reduce the possibility of damage to the photovoltaic assembly 100 or explosion.

[0111] like Figure 8 As shown, in a possible embodiment, the photovoltaic component 200 includes a second elastic member 8 , and the second elastic member 8 is located between the pin block 6 and the second edge 22 .

[0112] The second elastic member 8 may be a rubber strip structure, and the second elastic member 8 may be bonded to the second edge 22 or the pin block 6, or may be clamped between the second edge 22 and the pin block 6 to increase the friction coefficient between the back frame 2 and the pin block 6, and reduce the possibility of the photovoltaic assembly 100 sliding along the width direction X of the photovoltaic component 200, so as to improve the stability of the photovoltaic component 200. When the photovoltaic assembly 100 is subjected to a force in a direction away from the color steel tile 9, the second elastic member 8 is squeezed by the external force and can be elastically deformed, so that the back frame 2 can rotate clockwise or counterclockwise in the accommodating space 53, so as to reduce the stress concentration in the photovoltaic assembly 100 and reduce the possibility of damage to the photovoltaic assembly 100 or explosion.

[0113] like Figure 5 and Figure 6 As shown, in a possible embodiment, along the height direction Z of the photovoltaic component 200, the hook plate 5 and the pin block 6 are sequentially arranged on the first mounting portion 411 and are tightened and fixed by the first fastener 43. Along the length direction Y of the photovoltaic component 200, the first connecting portion 51 and the second connecting portion 52 are respectively located on both sides of the hook plate 5, and the first limiting portion 61 and the second limiting portion 62 are respectively located on both sides of the pin block 6.

[0114] The assembly process of the photovoltaic component 200 is as follows: install the clamp 4 on the color steel tile 9; then put the hook plate 5 on the first fastener 43; then install the photovoltaic components 100 at both ends of the hook plate 5 where the first connecting part 51 and the second connecting part 52 are respectively provided, so that the back frame 2 is located in the accommodating space 53, and the first connecting part 51 and the second connecting part 52 are respectively extended into the cavity 24 of the two photovoltaic components 100; then put the pin block 6 on the first fastener 43 to limit the position of the back frame 2 in the accommodating space 53 and reduce the possibility of the photovoltaic component 100 falling off; finally, tighten the first fastener 43 to fix the hook plate 5 and the pin block 6 to the clamp 4.

[0115] like Fig. 9 As shown, in a possible embodiment, the hook plate 5 includes a first hook plate 54 and a second hook plate 55, one end of the first hook plate 54 and one end of the second hook plate 55 overlap and are clamped, and the first fastener 43 can pass through the position where the first hook plate 54 and the second hook plate 55 overlap, so as to limit the position of the first hook plate 54 and the second hook plate 55. The first connecting portion 51 is provided at one end of the first hook plate 54 away from the second hook plate 55, and the second connecting portion 52 is provided at one end of the second hook plate 55 away from the first hook plate 54.

[0116] The assembly process of the photovoltaic component 200 is as follows: install the clamp 4 on the color steel tile 9; then put the first hook plate 54 and the second hook plate 55 on the first fastener 43, and make the first hook plate 54 and the second hook plate 55 interlock with each other; then install the photovoltaic components 100 at both ends of the hook plate 5 provided with the first connecting part 51 and the second connecting part 52, so that the back frame 2 is located in the accommodating space 53, and the first connecting part 51 and the second connecting part 52 are respectively extended into the cavity 24 of the two photovoltaic components 100; then put the pin block 6 on the first fastener 43 to limit the position of the back frame 2 in the accommodating space 53 and reduce the possibility of the photovoltaic component 100 falling off; finally, tighten the first fastener 43 to fix the hook plate 5 and the pin block 6 to the clamp 4.

[0117] like Fig.10 , Fig.11 and Fig.12As shown, in a possible embodiment, the pin block 6 includes a first pin block 63 and a second pin block 64. Along the width direction X of the photovoltaic component 200, the first pin block 63 and the second pin block 64 are arranged at intervals on the side of the hook plate 5 away from the clamp 4. A second fastener 44 is also arranged on the first mounting portion 411, wherein the first pin block 63 is mounted on the clamp 4 through the first fastener 43, and the second pin block 64 is mounted on the clamp 4 through the second fastener 44. The first pin block 63 and the second pin block 64 are both provided with waist holes. When the first fastener 43 and the second fastener 44 are not tightened, the first pin block 63 and the second pin block 64 can move along the length direction Y of the photovoltaic component 200. The first pin block 63 is provided with a first limiting portion 61, which extends in a direction close to the first connecting portion 51, and the second pin block 64 is provided with a second limiting portion 62, which extends in a direction close to the second connecting portion 52.

[0118] The assembly process of the photovoltaic component 200 is as follows: install the clamp 4 on the color steel tile 9; then put the hook plate 5 on the first fastener 43 and the second fastener 44; then put the first pin block 63 and the second pin block 64 on the first fastener 43 and the second fastener 44 respectively; then install the photovoltaic components 100 on both ends of the hook plate 5 provided with the first connecting portion 51 and the second connecting portion 52, so that the back frame 2 is located in the accommodating space 53, and the first connecting portion 51 and the second connecting portion 52 are respectively extended into the cavities 24 of the two photovoltaic components 100; then, along the length direction Y of the photovoltaic component 200, push the first pin block 63 and the second pin block 64 in opposite directions respectively, so that the first limiting portion 61 can limit the position of the back frame 2 in the first connecting portion 51, and the second limiting portion 62 can limit the position of the back frame 2 in the second connecting portion 52; finally, tighten the first fastener 43 and the second fastener 44 to fix the position of the first pin block 63 and the second pin block 64.

[0119] When disassembling or replacing the photovoltaic component 100 , the first fastener 43 or the second fastener 44 can be loosened to move the first pin block 63 or the second pin block 64 away from the accommodating space 53 to replace the photovoltaic component 100 at the first connection portion 51 or the second connection portion 52 .

[0120] The present application relates to a photovoltaic module 100 and a photovoltaic component 200. The photovoltaic module 100 includes a laminate 1 and a back frame 2. The back frame 2 is arranged on the backlight surface of the laminate 1, which can reduce the possibility of the back frame 2 blocking the light-receiving surface of the laminate 1, increase the light-receiving area of ​​the laminate 1, and thus improve the power generation efficiency of the photovoltaic module 100. The back frame 2 includes a first side 21, a second side 22 and a third side 23. Along the thickness direction of the photovoltaic module 100, the first side 21 and the third side 23 are arranged at intervals, one end of the second side 22 is connected to the first side 21, and the other end is connected to the third side 23, forming a C-shaped back frame 2. The first side 21 in the back frame 2 is connected to the backlight surface of the laminate 1. Along the width direction of the back frame 2, the width of the first side 21 is greater than the width of the third side 23, so as to increase the area of ​​the connection surface between the back frame 2 and the laminate 1, reduce the possibility of the back frame 2 falling off, and help improve the reliability of the photovoltaic module 100.

Claims

1. A photovoltaic module, characterized in that: The photovoltaic module (100) comprises: Laminate (1); A back frame (2), the back frame (2) being arranged on the backlight surface of the laminate (1); The back frame (2) comprises a first side (21), a second side (22) and a third side (23); along the thickness direction of the photovoltaic module (100), the first side (21) and the third side (23) are arranged at intervals; one end of the second side (22) is connected to the first side (21), and the other end is connected to the third side (23); along the width direction of the back frame (2), the width of the first side (21) is greater than the width of the third side (23); and the laminate (1) is connected to the first side (21).

2. The photovoltaic module according to claim 1, characterized in that: The width of the first side (21) is 10 mm to 20 mm.

3. The photovoltaic module according to claim 1, characterized in that: The first side (21), the second side (22) and the third side (23) enclose a cavity (24); the first side (21) includes a first protruding portion (211), the third side (23) includes a second protruding portion (231), and the first protruding portion (211) and the second protruding portion (231) both extend into the cavity (24).

4. The photovoltaic module according to claim 3, characterized in that: The first protruding portion (211) and the second protruding portion (231) are both inclined in a direction approaching the second edge (22).

5. The photovoltaic module according to claim 3, characterized in that: The second side (22) is bent in a direction close to the cavity (24) to form a first recessed portion (221).

6. The photovoltaic module according to claim 1, characterized in that: A second recessed portion (212) is provided on the side of the first edge (21) facing the laminate (1).

7. The photovoltaic module according to claim 1, characterized in that: A bending portion (213) is provided at one end of the first side (21) away from the second side (22), and the bending portion (213) is bent towards a side away from the laminate (1).

8. A photovoltaic component, characterized in that: The photovoltaic component (200) includes a clamp (4), a hook plate (5), a pin block (6) and a photovoltaic assembly (100), wherein the hook plate (5) and the pin block (6) are both installed on the clamp (4), and the photovoltaic assembly (100) is the photovoltaic assembly (100) described in any one of claims 1 to 7, and the back frame (2) is installed between the hook plate (5) and the pin block (6), the hook plate (5) is abutted against the third side (23), and the pin block (6) is abutted against the second side (22).

9. The photovoltaic component according to claim 8, characterized in that: The hook plate (5) is provided with a first elastic member (7), and the first elastic member (7) is located between the hook plate (5) and the third edge (23).

10. The photovoltaic component according to claim 8, characterized in that: A second elastic member (8) is provided between the pin block (6) and the second edge (22).

Images