Corner connector, photovoltaic module and photovoltaic system

Abstract

The utility model provides a corner connector, a photovoltaic assembly and a photovoltaic system, and relates to the field of photovoltaic technology. The corner connector comprises two mounting parts of which the end parts are connected together; each mounting part comprises an upper plate, a limiting connecting part, a first side plate and a lower plate which are connected in sequence; the limiting connecting part is connected with the first end of the first side plate; the lower plate is connected with the second end of the first side plate; the limiting connecting part comprises a connecting part middle plate and a connecting part side plate which are connected in sequence, and the connecting part middle plate is connected with the first end of the first side plate; the upper plate and the connecting part middle plate are opposite to the lower plate in the first direction, and the upper plate, the connecting part side plate, the connecting part middle plate and the first side plate are sequentially connected to form a step; the connecting part side plate comprises a first part close to the connecting position of the two mounting parts and a second part far away from the connecting position of the two mounting parts; one end of the second portion away from the lower plate has a first upper surface. The corner connector can be prevented from sliding out of the cavity of the frame, and the mounting success rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, and particularly relates to an angle code, a photovoltaic module and a photovoltaic system. Background Art

[0002] Solar cells utilize clean energy, and thus have broad application prospects. Since the output voltage of a single solar cell is relatively low, a certain number of solar cells are usually encapsulated into a photovoltaic laminate. Moreover, after installing a frame for the photovoltaic laminate, the application scenarios of the photovoltaic laminate can be broadened, etc.

[0003] Specifically, for installing a steel frame for the photovoltaic laminate: the steel frame is snap-connected around the photovoltaic laminate, and a steel angle code is used to join two adjacent frames. However, currently, the steel angle code is prone to slipping out of the frame, resulting in installation failure. Summary of the Utility Model

[0004] The utility model provides an angle code, a photovoltaic module and a photovoltaic system, aiming to solve the problem that the existing steel angle code is prone to slipping out of the steel frame.

[0005] In a first aspect of the utility model, an angle code is provided, comprising:

[0006] Two mounting parts with their ends connected together;

[0007] Each of the mounting parts includes: an upper plate, a limiting connection part, a first side plate and a lower plate connected in sequence; the limiting connection part connects the first end of the first side plate, and the lower plate connects the second end of the first side plate; the first end and the second end are opposite in a first direction;

[0008] The limiting connection part includes: a connection part middle plate and a connection part side plate connected in sequence, the connection part middle plate connects the first end of the first side plate; the upper plate and the connection part middle plate are both opposite to the lower plate in the first direction, and the upper plate, the connection part side plate, the connection part middle plate and the first side plate are connected in sequence to form a step;

[0009] The connection part side plate includes: a first part close to the connection position of the two mounting parts and a second part far from the connection position of the two mounting parts; the upper plate and the first part of the connection part side plate are connected via an arc-shaped limiting part; one end of the second part far from the lower plate has a first upper surface;

[0010] The upper plate has a second upper surface facing away from the lower plate;

[0011] Wherein, the first upper surface is closer to the lower plate than the second upper surface, or the first upper surface is flush with the second upper surface.

[0012] In the utility model, the frame includes: a first plate, a second plate, a third plate, a fourth plate and a fifth plate. The first plate, the second plate and the third plate form a mounting groove with an opening; the third plate, the fourth plate and the fifth plate, which are successively distributed, form a cavity with an opening. The mounting groove and the cavity are respectively located on both sides of the third plate, and the opening directions of the two are opposite. The frame also includes: a bending plate located between the second plate and the third plate, the bending plate is U-shaped, and the opening of the U-shaped plate faces the first plate and connects the second plate and the third plate. The corner code is arranged in the cavity of the frame, and the middle plate of the connecting part can be clamped with the bending plate and the third plate of the frame. At the same time, the second part of the side plate of the connecting part abuts against the bending plate and the third plate, and the first upper surface of the second part away from the end of the lower plate has a strong limiting effect on the bending plate and the third plate, thereby preventing the corner code from sliding out of the cavity of the frame, further improving the installation success rate and connection strength. The arc-shaped limiting portion can limit the position of the angle code in the cavity of the frame, and can further prevent the angle code from slipping out of the cavity of the frame, further improving the success rate of installation. At the same time, in the process of assembling the angle code and the frame, the middle plate of the connecting portion and the second part also play a certain guiding role, making assembly easier. In addition, due to the good limiting effect of the second part on the bending plate and the third plate of the frame, the size of the middle plate of the connecting portion can be reduced to a large extent, reducing costs and weight. The first upper surface is closer to the lower plate than the second upper surface of the upper plate away from the lower plate, or the first upper surface and the second upper surface are flush, which is convenient for the assembly of the angle code and the frame, and can also prevent the first upper surface of the second part with clear edges and corners from scratching the frame.

[0013] Optionally, the first upper surface is square in shape.

[0014] Optionally, along the installation direction of the installation portion where the second portion is located, the length of the second portion is 3 mm to 30 mm.

[0015] Optionally, a height difference between the first upper surface and the second upper surface in the first direction is 0.1 mm to 1 mm.

[0016] Optionally, an angle between the first upper surface and at least one side surface of the second portion is a right angle.

[0017] Optionally, the arc-shaped limiting portion is in the shape of a quarter arc; and / or,

[0018] The width of the arc-shaped limiting portion is 1 mm to 4 mm; the direction of the width of the arc-shaped limiting portion is perpendicular to the installation direction of the installation portion where the arc-shaped limiting portion is located and the first direction; and / or,

[0019] The height of the arc-shaped limiting portion in the first direction is 1 mm to 4 mm; and / or,

[0020] The included angle between the tangent plane at the connection position of the arc-shaped limiting portion and the first part and the second upper surface is 70° to 110°.

[0021] Optionally, each of the mounting portions further includes at least one of the following: a first guide plate, a second guide plate, and a third guide plate;

[0022] The first guide plate is located at the end of the upper plate away from the connection position of the two mounting portions; the second guide plate is located at the end of the second part away from the connection position of the two mounting portions; the third guide plate is located at the end of the lower plate away from the connection position of the two mounting portions;

[0023] In each of the mounting portions, the first guide plate is inclined towards the lower plate, the second guide plate is inclined away from the middle plate of the connecting portion, and the third guide plate is inclined towards the upper plate.

[0024] Optionally, the included angle between the first guide plate and the upper plate is 10° to 45°; and / or,

[0025] Along the direction away from the upper plate, the first guide plate gradually narrows in a manner that at least one side is inclined; and / or,

[0026] The included angle between the second guide plate and the second part of the side plate of the connecting portion is 10° to 45°; and / or,

[0027] Along the direction away from the side plate of the connecting portion, the second guide plate gradually narrows in a manner that at least one side is inclined; and / or,

[0028] The included angle between the third guide plate and the lower plate is 10° to 45°; and / or,

[0029] Along the direction away from the lower plate, the third guide plate gradually narrows in a manner that at least one side is inclined.

[0030] Optionally, the inclination angle of the at least one side of the first guide plate is 10° to 30°; and / or,

[0031] The inclination angle of the at least one side of the second guide plate is 10° to 30°; and / or,

[0032] The inclination angle of the at least one side of the third guide plate is 10° to 30°.

[0033] Optionally, the length of the first guide plate is 1 mm to 10 mm; and / or,

[0034] The length of the second guide plate is 1 mm to 10 mm; and / or,

[0035] The length of the third guide plate is from 1 mm to 10 mm.

[0036] Optionally, the shape of the first guide plate is rectangular; and / or,

[0037] the shape of the second guide plate is rectangular; and / or,

[0038] the shape of the third guide plate is rectangular.

[0039] Optionally, the upper plate is shorter than both the first side plate and the lower plate.

[0040] Optionally, in the lower plate of each of the mounting parts, at least one riveting point facing away from the upper plate is provided.

[0041] Optionally, a step is formed between at least one side root of the riveting point and the lower plate, and the height of the step is from 0.3 mm to 1.5 mm; and / or,

[0042] The depth at which the riveting point protrudes from the lower plate is gradually tapered in a wedge shape, and the depth is the largest in the direction close to the connection position of the two mounting parts.

[0043] Optionally, each of the mounting parts has at least two of the riveting points, and the projected dimensions of two of the riveting points in the first direction are different.

[0044] Optionally, the corner bracket is a steel corner bracket;

[0045] and / or, the corner bracket is integrally bent and formed from a steel strip by a stamping process; the thickness of the steel strip is from 0.8 mm to 2.0 mm;

[0046] and / or, the length of each of the mounting parts in the mounting direction is from 30 mm to 70 mm;

[0047] and / or, in each of the mounting parts, the width of the upper plate is from 5 mm to 15 mm, and the direction in which the width of the upper plate is located is perpendicular to both the mounting direction of the mounting part where the upper plate is located and the first direction;

[0048] and / or, in each of the mounting parts, the height of the first side plate in the first direction is from 3 mm to 20 mm;

[0049] and / or, the corner bracket further includes: a corner guard located outside the end of the connection position of the two mounting parts.

[0050] In a second aspect of the present invention, a photovoltaic module is provided, which is characterized by comprising: a photovoltaic laminate, a frame, and any one of the foregoing corner brackets;

[0051] The frame includes: a first plate, a second plate, a third plate, a fourth plate, and a fifth plate. The first plate, the second plate, and the third plate form an installation groove with an opening. The third plate, the fourth plate, and the fifth plate form a cavity with an opening. The frame further includes: a bending plate located between the second plate and the third plate. The bending plate is U-shaped, and the opening of the U-shape faces the first plate and connects the second plate and the third plate.

[0052] The photovoltaic laminate is disposed in the installation groove.

[0053] The corner connector is disposed in the cavity. The middle plate of the connecting portion is snap-connected to the side of the bending plate adjacent to the third plate and the bottom of the bending plate. The second portion of the side plate of the connecting portion abuts against the bending plate and the third plate. The upper plate is higher than the bottom of the bending plate.

[0054] Optionally, the corner connector further includes: a corner guard located outside the end of the connection position of the two installation portions. The corner guard protrudes from the upper plate in the first direction. In the first direction, the end of the corner guard protruding from the upper plate is flush with the upper surface of the first plate away from the third plate, or the end is closer to the third plate than the upper surface of the first plate facing away from the third plate.

[0055] Optionally, in the first direction, the distance between the end of the corner guard protruding from the upper plate and the upper surface of the first plate facing away from the third plate is 0.5 mm to 1 mm.

[0056] Optionally, at least one riveting point facing away from the upper plate is provided in the lower plate of each installation portion.

[0057] At the position of the fifth plate corresponding to the riveting point, a riveting hole matching the shape of the riveting point is provided, and the riveting point is inserted into the corresponding riveting hole.

[0058] In the third aspect of the present invention, a photovoltaic system is provided, including: a plurality of any one of the foregoing photovoltaic modules arranged in an array.

[0059] The above corner connector, photovoltaic module, and photovoltaic system have the same or similar beneficial effects. To avoid repetition, they are not described herein again. Description of the Drawings

[0060] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0061] Figure 1 Shows a schematic structural diagram of a corner bracket in an embodiment of the present utility model;

[0062] Figure 2 Shows a schematic structural diagram of another corner bracket in an embodiment of the present utility model;

[0063] Figure 3 Shows a schematic structural diagram of still another corner bracket in an embodiment of the present utility model;

[0064] Figure 4 Shows a schematic partial structural diagram of a corner bracket in an embodiment of the present utility model;

[0065] Figure 5 Shows a top view schematic diagram of a corner bracket in an embodiment of the present utility model;

[0066] Figure 6 Shows a schematic cross-sectional diagram of a corner bracket in an embodiment of the present utility model;

[0067] Figure 7 Shows another schematic cross-sectional diagram of a corner bracket in an embodiment of the present utility model;

[0068] Figure 8 Shows a schematic structural diagram of a frame in an embodiment of the present utility model;

[0069] Figure 9 Shows a schematic partial structural diagram of a photovoltaic module in an embodiment of the present utility model.

[0070] Explanation of the drawing reference numerals:

[0071] 100 - corner bracket, 10 - installation part, 11 - upper plate, 12 - limit connection part, 121 - middle plate of the connection part, 122 - side plate of the connection part, 1221 - first upper surface, 123 - arc-shaped limit part, 13 - first side plate, 14 - lower plate, 15 - first guide plate, 16 - second guide plate, 17 - third guide plate, 18 - riveting point, 19 - corner guard, 111 - groove, 112 - protrusion, 200 - frame, 201 - installation groove, 202 - cavity, 21 - first plate, 22 - second plate, 23 - third plate, 24 - fourth plate, 25 - fifth plate, 26 - bending plate, 300 - photovoltaic module. Detailed implementation manners

[0072] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0073] Figure 1 and Figure 2 differ in perspective. Figure 3 and Figure 1 differ in perspective. Figure 6 is a schematic cross-sectional view of the corner code cut along the position shown by A-A in Figure 5 , where the part shown by the thick black solid line in Figure 6 is the schematic of the tangent line. Figure 7 is a schematic cross-sectional view of the corner code cut along the position shown by B-B in Figure 5 .

[0074] The present utility model provides a corner code. Referring to Figure 1 , the corner code 100 may include: two mounting parts 10 with their ends connected together. Each mounting part 10 includes: an upper plate 11, a limiting connection part 12, a first side plate 13, and a lower plate 14 connected in sequence. The limiting connection part 12 connects to the first end of the first side plate 13, and the lower plate 14 connects to the second end of the first side plate 13. Figure 1 In Figure 1 , the direction where L1 is located may be the first direction, and the first end and the second end of the first side plate 13 are opposite in the first direction L1.

[0075] The limiting connection part 12 includes: a connection part middle plate 121 and a connection part side plate 122 connected in sequence. The connection part middle plate 121 connects to the first end of the first side plate 13. The upper plate 11 and the connection part middle plate 12 are both opposite to the lower plate 14 in the first direction L1, and the upper plate 11, the connection part side plate 122, the connection part middle plate 121, and the first side plate 13 are connected in sequence to form a step.

[0076] Referring to Figure 8 and Figure 9, the frame 200 includes: a first plate 21, a second plate 22, a third plate 23, a fourth plate 24, and a fifth plate 25. Among them, the first plate 21, the second plate 22, and the third plate 23 form a mounting groove 201 with an opening, and the third plate 23, the fourth plate 24, and the fifth plate 25 that are continuously distributed in sequence form a cavity 202 with an opening. The mounting groove 201 and the cavity 202 are respectively located on both sides of the third plate 23, and the opening directions of the two are opposite. The frame 200 further includes: a bending plate 26 located between the second plate 22 and the third plate 23. The bending plate is U-shaped, and the opening of the U-shape faces the first plate 21 and connects the second plate 22 and the third plate 23. The photovoltaic laminate may include: a solar cell, a front encapsulation film and a cover plate that are sequentially located on the light-facing side of the solar cell, and a rear encapsulation film and a back plate that are sequentially located on the backlight side of the solar cell. During the normal operation of the photovoltaic laminate or the solar cell, the side that mainly receives light is the light-facing side, and the backlight side is distributed opposite to the light-facing side. For the frame 200 with the bending plate 26, after assembly, the photovoltaic laminate is disposed in the mounting groove 201 of the frame 200, and the corner fitting 100 is disposed in the cavity 202 of the frame 200. After the photovoltaic laminate, the frame 200, and the corner fitting 100 are assembled, the light-facing side of the solar cell is farther away from the lower plate 14 of the corner fitting 100.

[0077] The limiting connection part 12 can be clamped with the side of the bending plate 26 of the frame 200 adjacent to the third plate 23, the bottom of the bending plate 26 away from the first plate 21, and the third plate 23, so as to prevent the corner fitting 100 from slipping out of the cavity 202 of the frame 200, and improve the installation success rate. The side plate 122 of the connection part includes: a first part near the connection positions of the two installation parts 10 and a second part away from the connection positions of the two installation parts 10. The upper plate 11 and the first part of the side plate 122 of the connection part are connected via an arc-shaped limiting part 123. The arc-shaped limiting part 123 can limit the position of the corner fitting 100 in the cavity 202 of the frame 200, and can further prevent the corner fitting 100 from slipping out of the cavity 202 of the frame 200, further improving the installation success rate and connection strength. One end of the second part of the side plate 122 of the connection part away from the lower plate 14 has a first upper surface 1221. The second part of the side plate 122 of the connection part abuts against the bending plate 26 and the third plate 23. The first upper surface 1221 at one end of the second part away from the lower plate 14 has a strong limiting effect on the bending plate 26 and the third plate 23, so as to prevent the corner fitting 100 from slipping out of the cavity 202 of the frame 200, further improving the installation success rate and connection strength. At the same time, during the assembly process of the corner fitting 100 and the frame 200, the middle plate 121 of the connection part and the second part also play a certain guiding role, making the assembly easier. At the same time, due to the good limiting effect of the second part on the bending plate 26 and the third plate 23 of the frame 200, the size of the middle plate 121 of the connection part can be reduced to a large extent, reducing the cost and weight. The first upper surface 1221 at one end of the second part away from the lower plate 14 is closer to the lower plate 14 than the second upper surface of the upper plate 11 away from the lower plate 14, or the first upper surface 1221 and the second upper surface are flush, which is convenient for the assembly of the corner fitting 100 and the frame 200, and can also prevent the first upper surface 1221 with distinct edges and corners of the second part from scratching the frame.

[0078] More specifically, the inventor found that although the arc-shaped limiting part 123 can limit the position of the corner fitting 100 in the cavity 202 of the frame 200, the outer R corner radius of the arc-shaped limiting part 123 is relatively large, and the bending plate 26 of the frame also has an outer R corner, so the limiting effect is poor, and the corner fitting is prone to slip outwards during frame installation. In this application, through the setting of the second part of the side plate 122 of the connection part, since the first upper surface of the second part away from the lower plate has no R corner, it can have a good fixing effect with the frame after frame installation and can reliably prevent the corner fitting from slipping out.

[0079] Optionally, the shape of the first upper surface at one end of the second part away from the lower plate 14 is square, with distinct edges and corners, and has a strong limiting effect on the bending plate 26 and the third plate 23, further preventing the corner fitting 100 from slipping out of the cavity 202 of the frame 200, and further improving the installation success rate and connection strength.

[0080] It should be noted that the specific shape of the bent plate 26 of the frame 200 is not limited. The shape of the limiting connection part 12 may not be specifically limited and can be adapted to the shape of the bent plate 26 of the frame 200 with which it is snap-connected.

[0081] Optionally, referring to Figures 1 to 3 、 Figure 5 and Figure 9 , the connection positions of the two mounting parts 10 are both beveled at 45° to form a vertical connection. As a result, the two mounting parts 10 are subjected to relatively similar and uniform forces and have a longer service life.

[0082] Figures 1 to 3 As shown by L3 in

[0083] Optionally, referring to Figure 2 , along the installation direction L3 of the installation part where the second part is located, the length d1 of the second part is 3 mm to 30 mm. The length d1 of the second part is more appropriate, and it has a better abutting and limiting effect on the bent plate 26 and the third plate 23 of the frame 200. Furthermore, it can fully prevent the corner fitting 100 from slipping out of the cavity 202 of the frame 200. Moreover, the length d1 of the second part is not too large, which reduces the cost and weight.

[0084] For example, the length d1 of the second part can be 3 mm, or 3.5 mm, or 4 mm, or 4.5 mm, or 5 mm, or 6.5 mm, or 7.9 mm, or 8.5 mm, or 9.5 mm, or 10 mm, or 11.5 mm, or 12.5 mm, or 13 mm, or 14 mm, or 15.5 mm, or 16.5 mm, or 19 mm, or 20 mm, or 22 mm, or 25 mm, or 27 mm, or 30 mm.

[0085] Optionally, the height difference between the first upper surface 1221 at one end of the second part far from the lower plate 14 and the second upper surface of the upper plate 11 far from the lower plate 14 is 0.1 mm to 1 mm, and the direction in which the height difference is located is parallel to the first direction L1. This height difference range is more appropriate, and during the process of assembling the frame 200, it can fully prevent the first upper surface with distinct edges and corners of the second part from scratching the frame 200.

[0086] For example, the height difference between the first upper surface and the second upper surface can be 0.1 mm, or 0.2 mm, or 0.34 mm, or 0.4 mm, or 0.46 mm, or 0.51 mm, or 0.54 mm, or 0.65 mm, or 0.72 mm, or 0.77 mm, or 0.83 mm, or 0.96 mm, or 1 mm.

[0087] Optionally, the angle between the first upper surface 1221 away from the lower plate 14 in the second part and at least one side surface of the second part is a right angle. The edges and corners of the first upper surface 1221 away from the lower plate 14 in the second part are more distinct, which has a strong limiting effect on the bent plate 26 and the third plate 23. Further, it can further prevent the corner fitting 100 from slipping out of the cavity 202 of the frame 200, and further improve the installation success rate and connection strength. For example, the angle between the first upper surface 1221 away from the lower plate 14 in the second part and the side surface connected to the middle plate 121 of the connecting part can be a right angle.

[0088] Optionally, referring to Figure 1 , Figure 3 , the shape of the arc-shaped limiting part 123 is a quarter circle arc. When the bent plate 26 of the frame 200 is a circular arc plate, their shapes are more adapted, the clamping effect is better, and further, it can further prevent the corner fitting 100 from slipping out of the cavity 202 of the frame 200. At the same time, during the assembly process of the corner fitting 100 and the frame 200, the arc-shaped limiting part 123 plays a good guiding role.

[0089] Optionally, referring to Figure 1 , Figure 3 , the middle plate 121 of the connecting part is a quarter circle arc plate. When the bent plate 26 of the frame 200 is a circular arc plate, their shapes are more adapted, the clamping effect is better, and further, it can further prevent the corner fitting 100 from slipping out of the cavity 202 of the frame 200. At the same time, during the assembly process of the corner fitting 100 and the frame 200, the middle plate 121 of the connecting part plays a good guiding role.

[0090] Optionally, referring to Figure 3 , the width d2 of the arc-shaped limiting part 123 is 1 mm to 4 mm. The direction of the width d2 of the arc-shaped limiting part 123, the installation direction L3 of the installation part where the arc-shaped limiting part is located, and the first direction L1 are all perpendicular, that is, parallel to the direction of L2. The width d2 of the arc-shaped limiting part 123 is more appropriate, the clamping effect is better, and further, it can further prevent the corner fitting 100 from slipping out of the cavity 202 of the frame 200.

[0091] For example, the width d2 of the arc-shaped limiting portion 123 can be 1 mm, or 1.5 mm, or 1.96 mm, or 2 mm, or 2.5 mm, or 2.88 mm, or 3 mm, or 3.5 mm, or 4 mm.

[0092] Optionally, the height of the arc-shaped limiting portion 123 is 1 mm to 4 mm ， The direction in which the height of the arc-shaped limiting portion 123 is located is parallel to the first direction L1. The height of the arc-shaped limiting portion 123 is more appropriate, and the clamping effect is better. Furthermore, it can further prevent the corner fitting 100 from sliding out of the cavity 202 of the frame 200.

[0093] For example, the height of the arc-shaped limiting portion 123 can be 1 mm, or 1.5 mm, or 1.85 mm, or 2 mm, or 2.5 mm, or 2.85 mm, or 3 mm, or 3.5 mm, or 4 mm.

[0094] Optionally, the included angle between the section plane at the connection position of the first part of the arc-shaped limiting portion 123 and the connecting portion side plate 122 and the second upper surface of the upper plate 11 away from the lower plate 14 is 70° to 110°. The shape of the arc-shaped limiting portion 123 formed thereby is more appropriate, and the clamping effect is better. Furthermore, it can further prevent the corner fitting 100 from sliding out of the cavity 202 of the frame 200.

[0095] For example, the included angle between the section plane at the connection position of the first part of the arc-shaped limiting portion 123 and the connecting portion side plate 122 and the second upper surface of the upper plate 11 away from the lower plate 14 can be 70°, or 80°, or 90°, or 100°, or 110°, or 75°, or 85°, or 85°, or 105°.

[0096] Optionally, referring to Figures 1 to 3 and Figure 5 , on the upper plate 11 of each mounting portion 10, at the end near the connection position of the two mounting portions 10, a groove 111 or a protrusion 112 is provided. The protrusion 112 on the upper plate 11 of one mounting portion 10 is embedded in the groove 111 on the upper plate 11 of the other mounting portion 10 to connect the upper plates 11 of the two mounting portions 10, and the connection method is simple. On the lower plate 14 of each mounting portion 10, at the end near the connection position of the two mounting portions 10, a groove 111 or a protrusion 112 is provided. The protrusion 112 on the lower plate 14 of one mounting portion 10 is embedded in the groove 111 on the lower plate 14 of the other mounting portion 10 to connect the lower plates 14 of the two mounting portions 10, and the connection method is simple. Optionally, the shapes of the groove 111 and the protrusion 112 are L-shaped or non-circular arc-shaped, the corners are more obvious, the groove 111 and the protrusion 112 are not easily unhooked after being engaged, the connection is more reliable, and the processing window for the groove 111 and the protrusion 112 is wider and easier to process.

[0097] Optionally, referring to Figures 1 to 3 , the grooves 111 and the protrusions 112 are arc-shaped, and the shapes of the two are complementary. During the assembly process, the protrusions 112 can slide into the grooves 111 more conveniently, and after assembly, the angle of the contact surface between the two can be pulled to the required angle, making the assembly easier. At the same time, the shapes of the two are smoother, and the surface of the frame 200 is not easily scratched during the assembly with the frame 200.

[0098] Optionally, after the grooves 111 and the protrusions 112 are embedded, the included angle between the contact surfaces of the two is 45° to 90°. The grooves 111 and the protrusions 112 are not easily decoupled after engagement, and the connection is more reliable.

[0099] For example, Figures 1 to 3 , after the grooves 111 and the protrusions 112 are embedded, the included angle between the contact surfaces of the two can be 45°, or 48°, or 50°, or 52.1°, or 53°, or 60°, or 62°, or 72°, or 74°, or 80°, or 83°, or 87°, or 89°, or 90°.

[0100] Optionally, referring to Figures 1 to 7 , Figure 9 , each mounting portion 10 further includes at least one guiding plate among a first guiding plate 15, a second guiding plate 16, and a third guiding plate 17. The first guiding plate 15 is located at the end of the upper plate 11 away from the connection position of the two mounting portions 10, the second guiding plate 16 is located at the end of the second portion away from the connection position of the two mounting portions 10, and the third guiding plate 17 is located at the end of the lower plate 14 away from the connection position of the two mounting portions 10.

[0101] In each mounting portion 10, the first guiding plate 15 is inclined towards the lower plate 14, the second guiding plate 16 is inclined away from the middle plate 121 of the connecting portion, and the third guiding plate 17 is inclined towards the upper plate 11. By providing the above-mentioned first guiding plate 15, second guiding plate 16, and third guiding plate 17, the guiding effect is better, the difficulty of the frame mounting process in the background technology is greatly reduced, the process window is increased, and the surface of the frame 200 is basically not damaged during the frame mounting process.

[0102] Optionally, the included angle between the first guide plate 15 and the upper plate 11 is 10° to 45°, that is, the third upper surface of the first guide plate 15 away from the lower plate 14 and the extended surface of the second upper surface of the upper plate 11 away from the lower plate 14 form an included angle of 10° to 45°. This included angle is more appropriate, has a better guiding effect, and is less likely to scratch the surface of the frame 200. For example, the included angle between the first guide plate 15 away from the lower plate 14 and the upper plate 11 can be 10°, or 12.5°, or 14.5°, or 17°, or 18.5°, or 20°, or 20.5°, or 22.5°, or 27.5°, or 30°, or 33°, or 36°, or 28.5°, or 40°, or 45°.

[0103] Optionally, referring to Figures 1 to 3 , and Figures 5 to 7 , along the direction away from the upper plate 11, the first guide plate 15 gradually narrows in a manner that at least one side is inclined, so as to avoid the first guide plate 15 affecting the framing. For example, along the direction away from the upper plate 11, the first guide plate 15 gradually narrows in a manner that one side is inclined, or, for example, Figures 1 to 3 , and Figures 5 to 7 , in

[0104] Optionally, referring to Figure 2 , the included angle a between the second guide plate 16 and the second part of the connecting part side plate 122 is 10° to 45°, that is, the side of the second guide plate 16 close to the connecting part middle plate 121 and the extended surface of the side of the second part of the connecting part side plate 122 close to the connecting part middle plate 121 form an included angle a of 10° to 45°. This included angle is more appropriate, has a better guiding effect, and is less likely to scratch the surface of the frame 200. For example, the included angle a can be 10°, or 12°, or 15°, or 17°, or 18.5°, or 20°, or 20.5°, or 22.5°, or 27.5°, or 30°, or 33°, or 36°, or 28.5°, or 40°, or 45°.

[0105] Optionally, referring to Figures 1 to 3 , and Figures 5 to 7 , along the direction away from the connecting part side plate 122, the second guide plate 16 gradually narrows in a manner that at least one side is inclined, so as to avoid the second guide plate 16 affecting the framing. For example, along the direction away from the connecting part side plate 122, the second guide plate 16 gradually narrows in a manner that one side is inclined, or, for example, Figures 1 to 3 , and Figures 5 to 7 , in

[0106] Optionally, referring to Figure 2 , the included angle between the third guide plate 17 and the lower plate 14 is 10° to 45°, that is, the included angle b between the fourth upper surface of the third guide plate 17 close to the upper plate 11 and the extended surface of the fifth upper surface of the lower plate 14 close to the upper plate 11 can be 10° to 45°. This included angle is more appropriate, with a better guiding effect and less likely to scratch the surface of the frame 200. For example, the included angle b can be 10°, or 12°, or 15°, or 17°, or 18.5°, or 20°, or 20.5°, or 22.5°, or 27.5°, or 30°, or 33°, or 36°, or 28.5°, or 40°, or 45°.

[0107] Optionally, in the direction away from the lower plate 14, the third guide plate 17 gradually narrows in a manner that at least one side is inclined, so as to avoid the third guide plate 17 affecting the frame loading. For example, in the direction away from the lower plate 14, the third guide plate 17 gradually narrows with one side inclined, or, for example, Figures 1 to 3 in

[0108] Optionally, referring to Figure 2 , the inclination angle c of the at least one side of the first guide plate 15 is 10° to 30°. The setting of the inclination angle c is more appropriate and basically has no impact on the frame loading, and the guiding effect is better.

[0109] For example, the inclination angle c can be 10°, or 12°, or 14°, or 15°, or 18.5°, or 20°, or 17°, or 22.5°, or 27.5°, or 30°.

[0110] Optionally, referring to Figure 1 , the inclination angle g of the at least one side of the second guide plate 16 is 10° to 30°. The setting of the inclination angle g is more appropriate and basically has no impact on the frame loading, and the guiding effect is better.

[0111] For example, the inclination angle g can be 10°, or 12°, or 14°, or 15°, or 18.5°, or 20°, or 17°, or 22.5°, or 27.5°, or 30°.

[0112] Optionally, referring to Figure 2 , the inclination angle e of the at least one side of the third guide plate 17 is 10° to 30°. The setting of the inclination angle e is more appropriate and basically has no impact on the frame loading, and the guiding effect is better.

[0113] For example, the inclination angle e can be 10°, or 12°, or 14°, or 15°, or 18.5°, or 20°, or 17°, or 22.5°, or 27.5°, or 30°.

[0114] Optionally, referring to Figure 2 , the length d3 of the first guide plate 15 is 1 mm to 10 mm. The direction in which the length of the first guide plate 15 lies is parallel to the direction in which the first guide plate 15 inclines towards the lower plate 14. The length d3 of the first guide plate 15 is more appropriate, has a good fit with common frames, and has a good guiding effect, and basically has no impact on frame installation.

[0115] For example, the length d3 of the first guide plate 15 is 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 5.5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm.

[0116] Optionally, referring to Figure 1 , the length d4 of the second guide plate 16 is 1 mm to 10 mm. The direction in which the length of the second guide plate 16 lies is parallel to the direction in which the second guide plate 16 inclines away from the connecting plate middle plate 121. The length d4 of the second guide plate 16 is more appropriate, has a good fit with common frames, and has a good guiding effect, and basically has no impact on frame installation.

[0117] For example, the length d4 of the second guide plate 16 is 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 5.5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm.

[0118] Optionally, referring to Figure 1 , the length d5 of the third guide plate 17 is 1 mm to 10 mm. The direction in which the length of the third guide plate 17 lies is parallel to the direction in which the third guide plate 17 inclines towards the upper plate 11. The length d5 of the third guide plate 17 is more appropriate, has a good fit with common frames, and has a good guiding effect, and basically has no impact on frame installation.

[0119] For example, the length d5 of the third guide plate 17 is 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 5.5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm.

[0120] Optionally, the shape of the first guide plate 15 is rectangular. The shape of the first guide plate 15 is flexible and diverse, and has a good guiding effect.

[0121] Optionally, the shape of the second guide plate 16 is rectangular. The shape of the second guide plate 16 is flexible and diverse, and has a good guiding effect.

[0122] Optionally, the shape of the third guide plate 17 is rectangular. The shape of the third guide plate 17 is flexible and diverse, and the guiding effect is good.

[0123] Optionally, the shape of the third guide plate 17 is rectangular. In the direction L2 that is perpendicular to both the installation direction L3 of the installation part where the third guide plate 17 is located and the first direction L1, the size of the third guide plate 17 is smaller than that of the lower plate 14. On the side close to the side wall of the frame, the upper and lower surfaces of the third guide plate 17 and the lower plate 14 are connected by a bevel, which can play a good guiding role and will not affect the frame installation.

[0124] Optionally, referring to Figures 1 to 3 , and Figures 5 to 7 , the upper plate 11 is shorter than both the first side plate 13 and the lower plate 14, which will not affect the frame installation and is conducive to installation.

[0125] Optionally, referring to Figures 1 to 4 and Figures 6 to 7 , in the lower plate 14 of the installation part 10, at least one riveting point 18 departing from the upper plate 11 is provided. The riveting point 18 will be inserted into the riveting hole on the frame to firmly connect the frame and the corner code.

[0126] Optionally, a step is formed between at least one side root of the riveting point 18 and the lower plate 14. The above step is used to fix the front and rear positions of the corner code after installation, and the fixation of the corner code is more stable and reliable. The raised part and the bottom surface are preferably not disconnected after stamping, so that the raised part and the bottom surface are an integral structure, not easily deformed, and the stability is better.

[0127] Optionally, the number of riveting points 18 in one lower plate 14 can be 1 - 3 to stably and reliably fix the corner code.

[0128] Optionally, referring to Figure 4 , the height d6 of the step is 0.3 mm to 1.5 mm. The direction where the height is located is parallel to the aforementioned first direction. The step within the above height range is easy to obtain, and the fixation of the corner code is relatively firm and reliable.

[0129] For example, the height d6 of the step can be 0.3 mm, 0.5 mm, 0.6 mm, 0.75 mm, 0.9 mm, 1 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm.

[0130] Optionally, referring to Figures 1 to 4 , the depth of the riveting point 18 protruding from the lower plate 14 shows a wedge-shaped gradual change, and the depth is the largest in the direction close to the connection position of the two installation parts, which can reduce the jamming effect during frame installation, make the frame installation smoother, and the frame installation efficiency higher. The direction where the depth is located here is parallel to the aforementioned first direction L1.

[0131] Optionally, each mounting portion has at least two riveting points 18, and the projected dimensions of two of the riveting points in the first direction L1 are different, which is beneficial for frame installation. Optionally, the corner fitting 100 is a steel corner fitting. The corner fitting 100 has good mechanical properties, a long service life, and / or the corner fitting 100 is integrally bent and formed from a steel strip by a stamping process. The process is mature and simple, and is easy to process. The thickness of the steel strip is 0.8 mm - 1.5 mm. The thickness of the steel strip is more appropriate. It not only has good mechanical properties and is easy to form, but also does not cause material waste. The material of the steel strip is not specifically limited. For example, the steel strip can be a zinc-aluminum-magnesium steel strip.

[0132] For example, the corner fitting 100 is integrally bent and formed from a steel strip by a stamping process. The thickness of the steel strip can be 0.8 mm, or 0.83 mm, or 0.92 mm, or 1.12 mm, or 1.15 mm, or 1.3 mm, or 1.41 mm, or 1.43 mm, or 1.5 mm.

[0133] Optionally, referring to Figure 3 , the length d7 of each mounting portion 10 in the mounting direction is 30 mm to 70 mm. When the length d7 of the mounting portion 10 is within the above range, it is more matched with the size of the existing frame 200. For example, the length d7 of the mounting portion 10 can be 30 mm, or 34.5 mm, or 36.7 mm, or 40 mm, or 55 mm, or 60 mm, or 61.5 mm, or 70 mm, or 65 mm, or 50 mm, or 55.6 mm.

[0134] Optionally, referring to Figure 1 , in each mounting portion 10, the width d8 of the upper plate 11 is 5 mm to 15 mm. The direction of the width d8 of the upper plate 11 is perpendicular to both the mounting direction of the mounting portion where the upper plate 11 is located and the first direction L1. When the width d8 of the upper plate 11 is within the above range, it is more matched with the size of the existing frame 200, and the assembly of the frame 200 and the corner fitting 100 is more reliable. For example, the width d8 of the upper plate 11 can be 5 mm, or 6 mm, or 7 mm, or 10 mm, or 11 mm, or 11.5 mm, or 12 mm, or 13 mm, or 14 mm, or 13.5 mm, or 15 mm.

[0135] Optionally, in each mounting portion 10, the height of the first side plate 13 is 3 mm to 20 mm. The direction in which the height of the first side plate 13 lies is parallel to the first direction L1. When the height of the first side plate 13 is within the above range, it is relatively well-matched with the size of the existing frame 200, and the assembly of the frame 200 and the corner code 100 is relatively reliable. For example, the height of the first side plate 13 can be 3 mm, or 4.2 mm, or 5.2 mm, or 5.71 mm, or 6 mm, or 6.7 mm, or 7.1 mm, or 7.5 mm, or 8 mm, or 8.12 mm, or 9 mm, or 9.7 mm, or 10.2 mm, or 11.6 mm, or 12 mm, or 13.1 mm, or 14.2 mm, or 15 mm, or 16.6 mm, or 18 mm, or 19.1 mm, or 20 mm.

[0136] Optionally, referring to Figures 1 to 3 , and Figures 5 to 7 , the corner code 100 further includes a corner guard 19 connecting two mounting portions 10. The corner guard 19 is located outside the end of the connection position of the two mounting portions 10, and the corner guard 19 can be composed of rectangular steel plates perpendicular to each other. The corner guard 19 protrudes from the upper plate 11 in the aforementioned first direction L1. In the aforementioned first direction L1, the end of the corner guard 19 protruding from the upper plate 11 is flush with the upper surface of the aforementioned first plate 21 away from the third plate 23. Or, in the aforementioned first direction L1, the end of the corner guard 19 protruding from the upper plate 11 is closer to the third plate 23 than the upper surface of the first plate 21 away from the third plate 23. That is to say, the end of the corner guard 19 protruding from the upper plate 11 is flush with the upper surface of the aforementioned first plate 21, or lower than the upper surface of the first plate 21, which can prevent the end of the sharp corner guard 19 from causing scratches to personnel or the frame.

[0137] This application also provides a photovoltaic module. Referring to Figure 8 and Figure 9 shown, the photovoltaic module 300 includes: a photovoltaic laminate (not shown in the figure), a frame 200, and any one of the aforementioned corner codes 100.

[0138] The frame 200 includes: a first plate 21, a second plate 22, a third plate 23, a fourth plate 24, and a fifth plate 25. The first plate 21, the second plate 22, and the third plate 23 form a mounting groove 201 with an opening. The third plate 23, the fourth plate 24, and the fifth plate 25 form a cavity 202 with an opening. The frame 200 further includes: a bending plate 26 located between the second plate 22 and the third plate 23. The bending plate 26 is U-shaped, and the opening of the U-shape faces the first plate 21 and connects the second plate 22 and the third plate 23.

[0139] The photovoltaic laminate is disposed in the installation groove 201 of the frame 200. The corner fitting 100 is disposed in the cavity 202 of the frame 200, and the middle plate 121 of the connecting portion of the corner fitting 100 is clamped to the side of the bending plate 26 of the frame 200 adjacent to the third plate 23 and the bottom of the bending plate 26. The second portion of the side plate 122 of the connecting portion abuts against the bending plate 26 and the third plate 23, and the upper plate 11 is higher than the bottom of the bending plate 26. The first upper surface 1221 of the second portion facing away from the lower plate 14 has a strong limiting effect on the bending plate 26 and the third plate 23, thereby preventing the corner fitting 100 from sliding out of the cavity of the frame 200, improving the installation success rate and connection strength. At the same time, during the assembly process of the corner fitting 100 and the frame 200, the middle plate 121 and the side plate 122 of the connecting portion also play a certain guiding role, making the assembly easier. At the same time, due to the good limiting effect of the second portion on the bending plate 26 of the frame 200, the size of the arc-shaped limiting portion 123 can be greatly reduced, the cost is reduced, and the weight is reduced.

[0140] Optionally, referring to Figures 1 to 3 , Figures 5 to 7 and Figure 9 , the corner fitting 100 further includes a corner guard 19 connecting two mounting portions 10. The corner guard 19 is located outside the end of the connecting position of the two mounting portions 10. The corner guard 19 can be composed of rectangular steel plates perpendicular to each other. The corner guard 19 protrudes from the upper plate 11 in the foregoing first direction L1. In the foregoing first direction L1, the end of the corner guard 19 protruding from the upper plate 11 is flush with the upper surface of the foregoing first plate 21 away from the third plate 23, or, in the foregoing first direction L1, the end of the corner guard 19 protruding from the upper plate 11 is closer to the third plate 23 than the upper surface of the first plate 21 away from the third plate 23, that is to say, the end of the corner guard 19 protruding from the upper plate 11 is flush with the upper surface of the foregoing first plate 21, or lower than the upper surface of the first plate 21, which can prevent the end of the sharp corner guard 19 from causing personal scratches or scratching the frame.

[0141] Optionally, referring to Figure 2 , the width d9 of the corner guard 19 is 1 mm - 5 mm. The width of the corner guard 19 is more appropriate, which will not affect the framing, will not cause material waste, and is easy to process. The direction in which the width of the corner guard 19 is located is perpendicular to the first direction. For example, the width d9 of the corner guard 19 can be 1 mm, 1.5 mm, 2 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm.

[0142] Optionally, in the photovoltaic module 300, in the foregoing first direction L1, the corner guard 19 protrudes from the end of the upper plate 11, is closer to the upper surface of the third plate 23 than the upper surface of the first plate 21 which is away from the third plate 23, and the distance between them is 0.5 mm to 1 mm. This distance setting is more appropriate, without causing waste, and the mechanical properties of the photovoltaic module are better.

[0143] For example, in the photovoltaic module 300, in the foregoing first direction L1, the corner guard 19 protrudes from the end of the upper plate 11, is closer to the upper surface of the third plate 23 than the upper surface of the first plate 21 which is away from the third plate 23, and the distance between them can be: 0.5 mm, or 0.52 mm, or 0.55 mm, or 0.61 mm, or 0.66 mm, or 0.7 mm, or 0.71 mm, or 0.78 mm, or 0.8 mm, or 0.84 mm, or 0.87 mm, or 0.89 mm, or 1 mm.

[0144] Optionally, in the lower plate 14 of each mounting portion 10, at least one riveting point 18 away from the upper plate 11 is provided. For the lower plate 14 of one mounting portion 10, the number of riveting points 18 is not specifically limited. At the position corresponding to the foregoing riveting point 18 on the fifth plate 25, a riveting hole matching the shape of the riveting point is provided, and the riveting point 18 is inserted into the corresponding riveting hole, thereby firmly limiting the corner bracket 100 and the frame 200.

[0145] It should be noted that the contour of the riveting point 18 can be arc-shaped or Figure 4 can be square, and no specific limitation is made thereto. Chamfers or rounded corners can be provided at some positions of the corner bracket to avoid scratching the frame, etc., and no specific limitation is made thereto.

[0146] The photovoltaic module 300 can refer to the relevant records of any of the foregoing corner brackets 100, and the two can be referred to each other, and can achieve the same or similar beneficial effects. To avoid repetition, it will not be elaborated here. No specific limitation is made to other structures of the frame 200.

[0147] The present utility model further provides a photovoltaic system, which may include: a plurality of photovoltaic modules 300 arranged in an array. In this photovoltaic system, the number of photovoltaic modules 300 is not limited. This photovoltaic system can have the same or similar beneficial effects as any of the foregoing corner brackets 100 and photovoltaic modules 300, and the relevant parts of the three can be referred to each other. This photovoltaic system can be arranged on a building roof, above the ground, etc., and no specific limitation is made thereto.

[0148] It should be noted that in this text, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising such element.

[0149] The embodiments of the present utility model have been described above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present utility model, those of ordinary skill in the art can also make many forms without departing from the spirit of the present utility model and the scope protected by the claims. All of these fall within the protection scope of the present utility model.

Claims

1. An angle code, characterized in that: include: Two mounting portions connected together at the ends; Each of the mounting parts comprises: an upper plate, a limiting connection part, a first side plate and a lower plate connected in sequence; the limiting connection part is connected to a first end of the first side plate, and the lower plate is connected to a second end of the first side plate; the first end and the second end are opposite in a first direction; The position-limiting connection portion comprises: a connection portion middle plate and a connection portion side plate connected in sequence, the connection portion middle plate is connected to a first end of the first side plate; the upper plate and the connection portion middle plate are both opposite to the lower plate in the first direction, and the upper plate, the connection portion side plate, the connection portion middle plate and the first side plate are connected in sequence to form a step; The connecting portion side plate comprises: a first portion close to the connecting positions of the two mounting portions and a second portion away from the connecting positions of the two mounting portions; the upper plate and the first portion of the connecting portion side plate are connected via an arc-shaped limiting portion; The second portion has a first upper surface at one end away from the lower plate; The upper plate has a second upper surface facing away from the lower plate; The first upper surface is closer to the lower plate than the second upper surface, or the first upper surface is flush with the second upper surface.

2. The angle code according to claim 1, characterized in that: The first upper surface is in a square shape.

3. The angle code according to claim 1, characterized in that: Along the installation direction of the installation portion where the second portion is located, the length of the second portion is 3 mm to 30 mm.

4. The angle code according to claim 1, characterized in that: A height difference between the first upper surface and the second upper surface in the first direction is 0.1 mm to 1 mm.

5. The angle code according to claim 1, characterized in that: An angle between the first upper surface and at least one side surface of the second portion is a right angle.

6. The angle code according to any one of claims 1 to 5, characterized in that: The arc-shaped limiting portion is in the shape of a quarter arc; and / or, The width of the arc-shaped limiting portion is 1 mm to 4 mm; the direction of the width of the arc-shaped limiting portion is perpendicular to the installation direction of the installation portion where the arc-shaped limiting portion is located and the first direction; and / or, The height of the arc-shaped limiting portion in the first direction is 1 mm to 4 mm; and / or, An angle between a section of the arc-shaped limiting portion at a connection position with the first portion and the second upper surface is 70° to 110°.

7. The angle code according to any one of claims 1 to 5, characterized in that: Each of the mounting portions further includes at least one of: a first guide plate, a second guide plate, and a third guide plate; The first guide plate is located at the end of the upper plate away from the connection position of the two mounting parts; the second guide plate is located at the end of the second part away from the connection position of the two mounting parts; the third guide plate is located at the end of the lower plate away from the connection position of the two mounting parts; In each of the mounting portions, the first guide plate is inclined toward a direction approaching the lower plate, the second guide plate is inclined toward a direction away from the middle plate of the connecting portion, and the third guide plate is inclined toward a direction approaching the upper plate.

8. The angle code according to claim 7, characterized in that: The included angle between the first guide plate and the upper plate is 10° to 45°; and / or, In a direction away from the upper plate, the first guide plate gradually narrows in a manner of at least one side being inclined; and / or, The included angle between the second guide plate and the second portion of the connecting portion side plate is 10° to 45°; and / or, In a direction away from the connecting portion side plate, the second guide plate gradually narrows in a manner of at least one side being inclined; and / or, The included angle between the third guide plate and the lower plate is 10° to 45°; and / or, In a direction away from the lower plate, the third guide plate gradually narrows in a manner in which at least one side is inclined.

9. The angle code according to claim 8, characterized in that: The inclination angle of the at least one side of the first guide plate is 10° to 30°; and / or, The inclination angle of the at least one side of the second guide plate is 10° to 30°; and / or, The inclination angle of the at least one side edge of the third guide plate is 10° to 30°.

10. The angle code according to claim 7, characterized in that: The length of the first guide plate is 1 mm to 10 mm; and / or, The length of the second guide plate is 1 mm to 10 mm; and / or, The length of the third guide plate is 1 mm to 10 mm.

11. The angle code according to claim 7, characterized in that: The first guide plate is in a rectangular shape; and / or, The second guide plate is in a rectangular shape; and / or, The third guide plate is in a rectangular shape.

12. The angle code according to any one of claims 1 to 5, characterized in that: The upper plate is shorter than both the first side plate and the lower plate.

13. The angle code according to any one of claims 1 to 5, characterized in that: At least one rivet point facing away from the upper plate is arranged in the lower plate of each mounting portion.

14. The angle code according to claim 13, characterized in that: At least one side of the root of the rivet point forms a step with the lower plate, and the height of the step is 0.3 mm to 1.5 mm; and / or, The depth of the rivet point protruding from the lower plate changes gradually in a wedge shape, and the depth is the largest in the direction close to the connection position of the two mounting parts.

15. The angle code according to claim 14, wherein each of the mounting portions has at least two rivet points, wherein projection sizes of the two rivet points in the first direction are different.

16. An angle code according to any one of claims 1 to 5, characterized in that: The angle bracket is a steel angle bracket; And / or, the angle code is formed by integrally bending a steel strip through a stamping process; the thickness of the steel strip is 0.8 mm to 2.0 mm; And / or, the length of each mounting portion along the mounting direction is 30 mm to 70 mm; And / or, in each of the mounting portions, the width of the upper plate is 5 mm to 15 mm, and the direction of the width of the upper plate is perpendicular to the mounting direction of the mounting portion where the upper plate is located and the first direction; And / or, in each of the mounting portions, a height of the first side plate along the first direction is 3 mm to 20 mm; And / or, the corner code further includes: a corner protector located outside the end portions where the two mounting portions are connected.

17. A photovoltaic module, characterized in that: include: Photovoltaic laminate, frame and corner code according to any one of claims 1 to 16; The frame includes: a first plate, a second plate, a third plate, a fourth plate and a fifth plate, wherein the first plate, the second plate and the third plate form a mounting groove having an opening, and the third plate, the fourth plate and the fifth plate form a cavity having an opening; the frame also includes: a bending plate located between the second plate and the third plate, wherein the bending plate is U-shaped, and the opening of the U-shape faces the first plate and connects the second plate and the third plate; The photovoltaic laminate is disposed in the mounting groove; The angle code is arranged in the cavity, and the middle plate of the connecting part is clamped on the side of the bending plate adjacent to the third plate and the bottom of the bending plate, and the second part of the side plate of the connecting part abuts the bending plate and the third plate; the upper plate is higher than the bottom of the bending plate.

18. The photovoltaic module according to claim 17, characterized in that: The corner code also includes: a corner guard located outside the end portion of the connection position of the two mounting portions; the corner guard protrudes from the upper plate in the first direction; in the first direction, the corner guard protrudes from the end portion of the upper plate and is flush with the upper surface of the first plate facing away from the third plate, or the end portion is closer to the third plate than the upper surface of the first plate facing away from the third plate.

19. The photovoltaic module according to claim 18, characterized in that: In the first direction, a distance between an end of the corner guard protruding from the upper plate and an upper surface of the first plate facing away from the third plate is 0.5 mm to 1 mm.

20. The photovoltaic module according to any one of claims 17 to 19, characterized in that: The lower plate of each mounting portion is provided with at least one rivet point facing away from the upper plate; A rivet point hole having a shape matching that of the rivet point is provided at a position of the fifth plate corresponding to the rivet point, and the rivet point is inserted into the corresponding rivet point hole.

21. A photovoltaic system, characterized in that: include: A plurality of photovoltaic modules according to any one of claims 17 to 20 arranged in an array.

Images