Photovoltaic frame, photovoltaic module and photovoltaic system

Abstract

The present application relates to the technical field of photovoltaics, and provides a photovoltaic frame, a photovoltaic module and a photovoltaic system. The photovoltaic frame comprises a first plate, a second plate, a third plate, a fourth plate and a fifth plate which are sequentially and continuously distributed. The first plate, the second plate and the third plate form a mounting recess having an opening; the third plate, the fourth plate and the fifth plate form a cavity having an opening; the mounting recess and the cavity are located on two sides of the third plate respectively, and the opening directions of the mounting recess and the cavity are opposite; the fifth plate comprises a body portion and a reinforcing portion, wherein the reinforcing portion is bent by 180 degrees from the end portion of the body portion distant from the fourth plate and extends towards the fourth plate. According to the present application, at the position where the stress is larger, i.e., at the fifth plate, the reinforcing portion is provided to increase the thickness of the fifth plate, thereby improving the mechanical properties such as tensile strength of the fifth plate, so that the fifth plate is less prone to damage, thus prolonging the service life of the photovoltaic frame. In addition, the reinforcing portion is directly obtained by bending the body portion by 180 degrees, so that the process is simple.

Description

Photovoltaic frame, photovoltaic module and photovoltaic system

[0001] This application claims priority to the Chinese patent application filed with the Patent Office of China on August 9, 2024, with application number 202421935854.4 and invention name “A corner code, photovoltaic module and photovoltaic system”, and the Chinese patent application filed with the Patent Office of China on November 22, 2023, with application number 202323159893.8 and invention name “A photovoltaic frame, photovoltaic module and photovoltaic system”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of photovoltaic technology, and in particular to a photovoltaic frame, a photovoltaic module and a photovoltaic system. Background Art

[0003] Solar cells utilize the photovoltaic effect to convert light energy into electrical energy. Because they utilize clean energy, they have broad application prospects. However, the output voltage of a single solar cell is relatively low, so a number of solar cells are typically packaged into a photovoltaic laminate. Furthermore, installing a photovoltaic frame around the photovoltaic laminate can broaden its application scenarios.

[0004] During use, existing photovoltaic frames are prone to local damage, especially when subjected to wind pressure or snow load, resulting in a shorter lifespan.

[0005] Application Contents

[0006] The present application provides a photovoltaic frame, a photovoltaic module and a photovoltaic system, aiming to solve the problem that existing photovoltaic frames are prone to local damage during use.

[0007] In a first aspect of the present application, a photovoltaic frame is provided, comprising:

[0008] A first plate, a second plate, a third plate, a fourth plate and a fifth plate are sequentially and continuously distributed;

[0009] The first plate, the second plate and the third plate form a mounting slot having an opening;

[0010] The third plate, the fourth plate and the fifth plate form a cavity having an opening;

[0011] The mounting groove and the cavity are respectively located on two sides of the third plate, and the opening directions of the two are opposite;

[0012] The fifth plate includes a main body and a reinforcement portion. The reinforcement portion is bent 180 degrees from an end of the main body away from the fourth plate and extends toward the fourth plate.

[0013] In this application, the fifth panel comprises a main body and a reinforcement. The reinforcement is bent 180° from the end of the main body away from the fourth panel and extends toward the fourth panel. By providing the reinforcement at the location of the fifth panel, where stress is greatest, the thickness of the fifth panel is increased, improving its tensile strength and other mechanical properties. This makes the fifth panel less susceptible to damage and increases the lifespan of the photovoltaic frame. Furthermore, the reinforcement is formed directly from the main body through a 180° bend, simplifying the process.

[0014] Optionally, along the extension direction of the width of the first plate, the size of the reinforcement portion is greater than or equal to 1 / 4 of the size of the main body portion, and smaller than the size of the main body portion.

[0015] Optionally, along the extension direction of the width of the first plate, the size of the reinforcement portion is 0.4 times to 0.9 times the size of the main body portion.

[0016] Optionally, along the extension direction of the width of the first plate, the size of the reinforcement portion is 13 mm to 28 mm, and the size of the main body portion is 15 mm to 30 mm.

[0017] Optionally, the reinforcement portion is located on a side of the main body close to the third plate.

[0018] Optionally, the photovoltaic frame further includes: a bending plate located between the second plate and the third plate; the bending plate starts to bend from the end of the second plate close to the third plate in a direction away from the first plate and is connected to the third plate.

[0019] Optionally, along the extension direction of the width of the first plate: the size of the main body is greater than the sum of the size of the third plate and the size of the bent plate.

[0020] Optionally, the bent plate includes: a connecting portion close to the third plate and connected to the third plate, and an angle between the connecting portion and the third plate is greater than or equal to 90° and less than 180°.

[0021] Optionally, along the extension direction of the width of the first plate, the maximum dimension of the inner portion of the bent plate is less than or equal to 5 mm;

[0022] and / or, along the extension direction of the width of the first plate: the sum of the dimensions of the third plate and the bent plate is 8 mm to 12 mm;

[0023] and / or, along the extension direction of the height of the second plate, the distance between the end point of the bent plate farthest from the first plate and the edge line of the third plate farthest from the first plate is 0.5 mm to 3 mm;

[0024] And / or, the connecting portion of the bent plate is vertically connected to the third plate.

[0025] Optionally, the fourth plate includes: a first portion close to the third plate and a second portion close to the fifth plate, and the first portion and the second portion are continuous;

[0026] The included angle between the first portion and the third plate is greater than 90° and less than or equal to 160°;

[0027] and / or, along the extension direction of the height of the second plate, the size of the first portion is 8 mm to 30 mm;

[0028] And / or, along the extension direction of the height of the second plate, the size of the second portion is 5 mm to 10 mm.

[0029] Optionally, the second portion is composed of a first sub-portion, a bending avoidance sub-portion, and a second sub-portion that are successively distributed in sequence; the first sub-portion is located in the bending avoidance sub-portion, close to the first end of the first portion; the second sub-portion is located in the bending avoidance sub-portion, close to the second end of the fifth plate; the first sub-portion and the second sub-portion are both parallel to the second plate;

[0030] The bending avoidance sub-portion bends from the first end to the second end in a direction away from the second plate.

[0031] Optionally, the angle between the portion of the bending avoidance sub-portion close to the end of the first sub-portion and the first sub-portion is 90° to 150°;

[0032] And / or, the bending avoidance sub-portion is in the shape of a flat plate or an arc plate.

[0033] Optionally, a first mounting through hole is formed on the main body, and a second mounting through hole is formed on the reinforcement portion, the first mounting through hole and the second mounting through hole are connected, and a first center line of the first mounting through hole is collinear with a second center line of the second mounting through hole;

[0034] Along the extension direction of the width of the first plate, the first mounting through hole is farthest from the inner wall of the first sub-section, and the distance between the first mounting through hole and the first sub-section is 9 mm to 13 mm;

[0035] And / or, along the extension direction of the height of the second plate, the distance between the surface of the fifth plate close to the first plate and the end of the bending avoidance sub-portion close to the first end is 1.3 mm to 7 mm.

[0036] Optionally, the photovoltaic frame is integrally formed of a metal strip, and the thickness of the metal strip is 0.5 mm to 1 mm.

[0037] In a second aspect of the present application, a photovoltaic assembly is provided, comprising: a corner bracket, a photovoltaic laminate, and any of the aforementioned photovoltaic frames, wherein the photovoltaic laminate is arranged in a mounting groove of the photovoltaic frame, and the corner bracket is arranged in the cavity.

[0038] Optionally, the photovoltaic frame further comprises: a bent plate located between the second plate and the third plate; the bent 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 corner bracket comprises: two mounting portions with ends connected together;

[0039] Each of the mounting portions includes: an upper plate, a position-limiting connection portion, a first side plate, and a lower plate connected in sequence; the position-limiting connection portion 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 to each other in a first direction;

[0040] The limiting connection portion includes: a connection portion middle plate and a connection portion side plate connected in sequence, the connection portion middle plate being 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;

[0041] The connecting portion side plate includes: 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;

[0042] The second portion has a first upper surface at one end away from the lower plate;

[0043] The upper plate has a second upper surface facing away from the lower plate;

[0044] 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;

[0045] 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.

[0046] The angle bracket is disposed within the frame's cavity, and the connecting portion's middle plate can engage with the frame's bent plate and third plate. Simultaneously, the second portion of the connecting portion's side plate abuts the bent plate and third plate. The first upper surface of the second portion, located away from the lower plate, exerts a strong limiting effect on the bent plate and third plate, thereby preventing the angle bracket from slipping out of the frame's cavity and further improving the installation success rate and connection strength. The arc-shaped limiting portion can restrict the position of the angle bracket within the frame's cavity, further preventing the angle bracket from slipping out of the frame's cavity and further improving the installation success rate. Furthermore, during assembly of the angle bracket and frame, the connecting portion's middle plate and second portion provide a guiding function, making assembly easier. Furthermore, due to the second portion's effective limiting effect on the frame's bent plate and third plate, the size of the connecting portion's middle plate can be significantly reduced, thereby reducing cost and weight. The first upper surface is closer to the lower plate than the second upper surface of the upper plate which is away from the lower plate, or the first upper surface and the second upper surface are flush, which facilitates the assembly of the corner bracket and the frame, and can also prevent the first upper surface of the second part with more distinct edges from scratching the frame.

[0047] Optionally, the shape of the first upper surface is square; and / or,

[0048] 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; and / or, the height difference between the first upper surface and the second upper surface in the first direction is 0.1 mm to 1 mm; and / or, the angle between the first upper surface and at least one side surface of the second portion is a right angle; and / or, the shape of the arc-shaped limiting portion is a quarter-circular arc; and / or,

[0049] 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,

[0050] The height of the arc-shaped limiting portion in the first direction is 1 mm to 4 mm; and / or,

[0051] An included 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°.

[0052] 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;

[0053] 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 portion 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;

[0054] In each of the mounting portions, the first guide plate is inclined toward the direction approaching the lower plate, the second guide plate is inclined toward the direction away from the middle plate of the connecting portion, and the third guide plate is inclined toward the direction approaching the upper plate.

[0055] Optionally, the angle between the first guide plate and the upper plate is 10° to 45°; and / or,

[0056] In a direction away from the upper plate, the first guide plate gradually narrows in a manner such that at least one side is inclined; and / or,

[0057] The included angle between the second guide plate and the second portion of the connecting portion side plate is 10° to 45°; and / or,

[0058] In a direction away from the connecting portion side plate, the second guide plate gradually narrows in a manner such that at least one side is inclined; and / or,

[0059] The included angle between the third guide plate and the lower plate is 10° to 45°; and / or,

[0060] 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.

[0061] Optionally, the inclination angle of the at least one side of the first guide plate is 10° to 30°; and / or,

[0062] The inclination angle of the at least one side of the second guide plate is 10° to 30°; and / or,

[0063] The inclination angle of the at least one side of the third guide plate is 10° to 30°.

[0064] Optionally, the length of the first guide plate is 1 mm to 10 mm; and / or,

[0065] The length of the second guide plate is 1 mm to 10 mm; and / or,

[0066] The length of the third guide plate is 1 mm to 10 mm; and / or, the shape of the first guide plate is rectangular; and / or,

[0067] The second guide plate is rectangular in shape; and / or,

[0068] The third guide plate is in a rectangular shape.

[0069] Optionally, the upper plate is shorter than both the first side plate and the lower plate; and / or, 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; and / or,

[0070] The angle bracket is a steel angle bracket; and / or,

[0071] And / or, the corner bracket 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;

[0072] and / or, the length of each mounting portion along the mounting direction is 30 mm to 70 mm;

[0073] 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;

[0074] 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;

[0075] And / or, the corner code further 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 first plate faces away from the upper surface of the third plate.

[0076] Optionally, a root portion of at least one side of the rivet point forms a step with the lower plate, and a height of the step is 0.3 mm to 1.5 mm; and / or,

[0077] The depth of the rivet point protruding from the lower plate changes gradually in a wedge shape, and the depth is the largest near the connection position of the two mounting parts.

[0078] Optionally, each of the mounting portions has at least two rivet points, wherein the projection sizes of the two rivet points in the first direction are different.

[0079] In a third aspect of the present application, a photovoltaic system is provided, comprising a plurality of the aforementioned photovoltaic components arranged in an array.

[0080] The above-mentioned photovoltaic frames, photovoltaic modules and photovoltaic systems have the same or similar beneficial effects, and will not be described again here to avoid repetition.

[0081] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0083] FIG1 shows a schematic structural diagram of a photovoltaic frame in the related art;

[0084] FIG2 shows a schematic structural diagram of a photovoltaic frame in an embodiment of the present application;

[0085] FIG3 shows a schematic structural diagram of another photovoltaic frame in an embodiment of the present application;

[0086] FIG4 shows a schematic diagram of a partial structure of a photovoltaic system according to an embodiment of the present application;

[0087] FIG5 shows a schematic structural diagram of an angle code in an embodiment of the present application;

[0088] FIG6 shows a schematic structural diagram of another angle code in an embodiment of the present application;

[0089] FIG7 shows a schematic structural diagram of another angle code in an embodiment of the present application;

[0090] FIG8 shows a schematic diagram of a partial structure of an angle code in an embodiment of the present application;

[0091] FIG9 shows a schematic top view of an angle code according to an embodiment of the present application;

[0092] FIG10 shows a cross-sectional schematic diagram of an angle code in an embodiment of the present application;

[0093] FIG11 shows another cross-sectional schematic diagram of the angle code in the embodiment of the present application;

[0094] FIG12 shows a schematic diagram of a partial structure of a photovoltaic module in an embodiment of the present application.

[0095] Explanation of the accompanying figures: 100-angle code, 10-installation part, 11-upper plate, 12-limiting connection part, 121-connecting part middle plate, 122-connecting part side plate, 1221-first upper surface, 123-arc-shaped limiting part, 13-first side plate, 14-lower plate, 15-first guide plate, 16-second guide plate, 17-third guide plate, 18-rivet point, 19-corner guard, 111-groove, 112-protrusion, 200-photovoltaic frame, 1-first plate, 2-second plate, 3-third plate, 4-fourth plate, 41-first part, 42-second part, 421-first sub-part, 422-bending avoidance sub-part, 423-second sub-part, 5-fifth plate, 51-main body, 52-reinforcement part, 6-bending plate, 61-connecting part, 7-bolt, 8-gasket. Specific embodiments

[0096] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0097] Figure 1 shows a schematic diagram of the structure of a photovoltaic frame in the related art. The main reason why the photovoltaic frame is prone to damage in local locations during use, especially when subjected to wind pressure or snow load, is that: with reference to Figure 1, the thickness of the photovoltaic frame is basically the same at all locations. However, during use, especially when subjected to wind pressure or snow load, the stresses at various locations of the photovoltaic frame are not the same, and the difference is large. In particular, the position of the cavity farthest from the mounting slot is subject to greater stress and is prone to damage. The thickness of the photovoltaic frame shown in Figure 1 is basically the same at all locations, resulting in local locations, especially the position of the cavity farthest from the mounting slot, being prone to damage.

[0098] Figure 2 shows a schematic diagram of the structure of a photovoltaic frame in an embodiment of the present application. Figure 3 shows a schematic diagram of the structure of another photovoltaic frame in an embodiment of the present application. Figure 4 shows a schematic diagram of the partial structure of a photovoltaic system in an embodiment of the present application.

[0099] The present application provides a photovoltaic frame, referring to Figures 2, 3 and 4, the photovoltaic frame may include: a first plate 1, a second plate 2, a third plate 3, a fourth plate 4 and a fifth plate 5 that are distributed in sequence. The first plate 1, the second plate 2 and the third plate 3 that are distributed in sequence form a mounting groove. There is an opening in the mounting groove at a position opposite to the second plate 2, the mounting groove is used to accommodate a photovoltaic laminate, and a sealant is provided on the inner surface of the mounting groove. The angle between the first plate 1 and the second plate 2 is not limited here. For example, the first plate 1 and the second plate 2 can be perpendicular to each other. The sealant here can be silicone, etc., which is used to connect and fix the photovoltaic frame and the photovoltaic laminate.

[0100] The continuously distributed third plate 3, fourth plate 4 and fifth plate 5 form a cavity with an opening. The cavity has an opening at a position opposite to the fourth plate 4. The cavity is used to set fasteners for fixing the photovoltaic frame. The mounting groove and the cavity are respectively located on both sides of the third plate 3, and the opening directions of the mounting groove and the cavity are opposite. As shown in Figures 2 to 4, the opening of the mounting groove faces right, while the opening of the cavity faces left, and the two opening directions are opposite. As shown in the figure, the overall shape of the photovoltaic frame is roughly "5"-shaped.

[0101] To address the aforementioned technical issues, the fifth plate 5 comprises a main portion 51 and a reinforcement portion 52. The reinforcement portion 52 is bent 180° from the end of the main portion 51 away from the fourth plate 4 and extends toward the fourth plate 4. In this application, the reinforcement portion 52 is provided at the location of the fifth plate 5, which is subject to greater stress, thereby increasing the thickness of the fifth plate 5 and improving its tensile strength and other mechanical properties. This makes the fifth plate 5 less susceptible to damage and increases the lifespan of the photovoltaic frame. Furthermore, the reinforcement portion 52 is formed directly from the main portion 51 by bending it 180°, which simplifies the process.

[0102] In the figure, L1 shows the extension direction along the width of the first plate 1, and the extension direction of the length of the first plate 1 is perpendicular to the paper surface inward. The extension direction of the length of the first plate 1 is perpendicular to the extension direction of the width of the first plate 1. There is no specific limitation on the length of the first plate 1. For example, the length of the first plate 1 can be about 2m (meters) to 3m. L2 shows the extension direction along the height of the second plate 2. The extension direction of the length of the second plate 2 is also perpendicular to the paper surface inward. Optionally, along the extension direction L1 of the width of the first plate 1, the size of the reinforcement part 52 is greater than or equal to 1 / 4 of the size of the main body 51, and smaller than the size of the main body 51. The size settings of the two are relatively reasonable, which can not only effectively improve the mechanical properties such as the tensile strength of the fifth plate 5 and the life of the photovoltaic frame, but also avoid waste of materials.

[0103] For example, along the extension direction L1 of the width of the first plate 1, the size of the reinforcement part 52 can be: 1 / 4 of the size of the main body part 51, or 1 / 3 of the size of the main body part 51, or 1 / 2 of the size of the main body part 51, or 3 / 4 of the size of the main body part 51, or 2 / 3 of the size of the main body part 51, or 3 / 5 of the size of the main body part 51, or 5 / 6 of the size of the main body part 51, or 29 / 30 of the size of the main body part 51, etc.

[0104] Optionally, along the width extension direction L1 of the first panel 1, the size of the reinforcement portion 52 is 0.4 to 0.9 times the size of the main portion 51. This more reasonable size setting not only further improves the tensile strength and other mechanical properties of the fifth panel 5, extending the life of the photovoltaic frame, but also avoids material waste.

[0105] For example, along the extension direction L1 of the width of the first plate 1, the size of the reinforcing portion 52 can be: 0.4 times the size of the main body portion 51, or 0.45 times the size of the main body portion 51, or 0.52 times the size of the main body portion 51, or 0.6 times the size of the main body portion 51, or 0.65 times the size of the main body portion 51, or 0.73 times the size of the main body portion 51, or 0.84 times the size of the main body portion 51, or 0.9 times the size of the main body portion 51, etc.

[0106] Optionally, referring to Figure 2 , along the width extension direction L1 of the first panel 1, the dimension D1 of the reinforcement portion 52 is 13 mm to 28 mm, and the dimension D2 of the main portion 51 is 15 mm to 30 mm. These two dimensions are reasonably set, which not only further improves the tensile strength and other mechanical properties of the fifth panel 5 and extends the life of the photovoltaic frame, but also avoids material waste.

[0107] For example, along the widthwise extension direction L1 of the first plate 1, the dimension D1 of the reinforcement portion 52 may be 13 mm, 14 mm, 14.6 mm, 15.5 mm, 19 mm, 23 mm, 26 mm, or 28 mm, etc. Along the widthwise extension direction L1 of the first plate 1, the dimension D2 of the main body portion 51 may be 15 mm, 17 mm, 19.6 mm, 22.5 mm, 24 mm, 26 mm, 28 mm, or 30 mm, etc.

[0108] Optionally, the reinforcement portion 52 is located on the side of the main body 51 close to the third plate 3. On the one hand, the appearance of the photovoltaic frame is beautiful. On the other hand, the reinforcement portion 52 is located inside the photovoltaic frame, which occupies less space and is conducive to transportation, handling and storage.

[0109] Optionally, the photovoltaic frame may further include: a bending plate 6 located between the second plate 2 and the third plate 3. The bending plate 6 begins to bend from the end of the second plate 2 close to the third plate 3 in a direction away from the first plate 1 and connects to the third plate 3. After the sealant is set, the bending plate 6 can accommodate the sealant, which can increase the bonding strength between the photovoltaic frame and the photovoltaic laminate. At the same time, it can largely prevent the sealant from detaching from the photovoltaic laminate and the photovoltaic frame when subjected to a load, thereby increasing the reliability of the connection between the two. The bending plate 6 is also used to block the corner code connected to the photovoltaic frame to prevent the corner code from escaping from the cavity.

[0110] Optionally, referring to FIG2 , along the extension direction L1 of the width of the first plate 1, the dimension D2 of the main body 51 is greater than the sum of the dimensions D3 of the third plate 3 and the dimensions of the bent plate 6. If D3 is smaller, the sealant is more likely to overflow from the opening of the mounting groove when the amount of sealant is the same. More specifically, the photovoltaic laminate is disposed in the mounting groove with the light-facing surface of the photovoltaic laminate closer to the first plate 1 and the backlight surface of the photovoltaic laminate closer to the third plate 3. If sealant overflow occurs from the backlight surface of the photovoltaic laminate, it can be considered that the amount of sealant disposed in the mounting groove is relatively sufficient, and the connection between the photovoltaic laminate and the photovoltaic frame is relatively reliable.

[0111] It should be noted that a photovoltaic laminate may include: a solar cell, a front encapsulant film and a cover sheet located sequentially on the light-facing side of the solar cell, and a rear encapsulant film and a back sheet located sequentially on the backlight side of the solar cell. During normal operation of a photovoltaic laminate or solar cell, the side that primarily receives light is the light-facing side, with the backlight side positioned opposite the light-facing side.

[0112] Optionally, referring to Figure 2, along the extension direction L1 of the width of the first plate 1: the sum of the size of the third plate 3 and the size of the bent plate 6 D3 is 8mm to 12mm, and the setting of D3 is more appropriate. When the amount of sealant is the same, the sealant is more likely to overflow from the opening of the mounting groove.

[0113] For example, along the extension direction L1 of the width of the first plate 1: the sum D3 of the size of the third plate 3 and the size of the bent plate 6 can be 8 mm, or 8.3 mm, or 9 mm, or 9.7 mm, or 10 mm, or 10.1 mm, or 11 mm, or 12 mm.

[0114] Optionally, referring to FIG2 , the bending plate 6 includes: a connecting portion 61 close to the third plate 3 and connected to the third plate 3, and the angle a between the connecting portion 61 and the third plate 3 is greater than or equal to 90° and less than 180°. The size of the angle a is reasonably set, and the bending plate 6 has a strong ability to accommodate the sealant, which can further increase the bonding strength between the photovoltaic frame and the photovoltaic laminate. At the same time, it can further prevent the sealant from detaching from the photovoltaic laminate and the photovoltaic frame when subjected to a load, thereby increasing the reliability of the connection between the two. It should be noted that the shape of the bending plate 6 can be an arc plate or other shapes, etc., and there is no specific limitation on this.

[0115] For example, the shape of the bending plate 6 is an arc plate. For example, the angle a can be 90°, or 100°, or 111°, or 122°, or 130°, or 135°, or 140°, or 150°, or 160°, or 179°.

[0116] Optionally, referring to Figure 2 , along the widthwise extension direction L1 of the first plate 1, the maximum dimension D4 inside the bent plate 6 is less than or equal to 5 mm. The maximum dimension D4 inside the bent plate 6 along the widthwise extension direction L1 of the first plate 1 refers to the distance inside the first bent portion 6 from the end closest to the second plate 2 to the end closest to the third plate 3 along the widthwise extension direction L1 of the first plate 1. A larger dimension D4 provides better sealant retention.

[0117] For example, along the extension direction L1 of the width of the first plate 1 , the maximum dimension D4 inside the bent plate 6 may be 0.9 mm, or 1.7 mm, or 2 mm, or 2.5 mm, or 3.4 mm, or 4.7 mm, or 5 mm.

[0118] Optionally, referring to Figure 2, and / or, along the extension direction L2 of the height of the second plate 2, the dimension D5 between the end point of the bent plate 6 farthest from the first plate 1 and the edge line of the third plate 3 farthest from the first plate 1 is 0.5mm to 3mm. The depth of the bent plate 6 is designed to accommodate more sealant without wasting material.

[0119] For example, D5 may be 0.5 mm, or 0.7 mm, or 1.0 mm, or 1.75 mm, or 1.8 mm, or 2.3 mm, or 3 mm.

[0120] Optionally, referring to Figures 3 and 4, the connecting portion 61 of the bending plate 6 is vertically connected to the third plate 3, that is, the angle a is 90°, and the bending plate 6 has a greater blocking effect on the angle code, which can effectively prevent the angle code from escaping from the cavity.

[0121] Optionally, referring to FIG. 2 , the fourth plate 4 includes a first portion 41 proximate to the third plate 3 and a second portion 42 proximate to the fifth plate 5 , wherein the first portion 41 and the second portion 42 are continuous. An angle b formed between the first portion 41 and the third plate 3 is greater than 9° and less than or equal to 160°. This angle b is suitable so that the first portion 41 can withstand significant impact along the height extension direction L2 of the second plate 2 , effectively cushioning the photovoltaic laminate when impacted.

[0122] For example, the angle b between the first portion 41 and the third plate 3 may be 90.3°, or 91°, or 101°, or 120°, or 130°, or 142.5°, or 150°, or 160°.

[0123] Optionally, referring to FIG2 , a dimension D6 of the first portion 41 along the direction extending along the height of the second panel 2 is between 8 mm and 30 mm. The larger dimension D6 of the first portion 41 along the direction extending along the height of the second panel 2 allows the first portion 41 to have a certain degree of elasticity in the direction extending along the height of the second panel 2, L2, and to withstand large impacts. This provides an effective buffering effect on the photovoltaic laminate when the photovoltaic laminate is impacted.

[0124] For example, in the extension direction parallel to the height of the second plate 2 , the dimension D6 of the first portion 41 may be 8 mm, or 11.7 mm, or 18 mm, or 19.5 mm, or 21 mm, or 27 mm, or 30 mm.

[0125] Optionally, referring to FIG2 , a dimension D7 of the second portion 42 along the height of the second plate 2 is 5 mm to 10 mm. This dimension D7 of the second portion 42 along the height of the second plate 2 is reasonably set, providing suitable installation space for fasteners such as the bolts 7 and washers 8, effectively limiting the fasteners and preventing them from rotating.

[0126] For example, in the extension direction parallel to the height of the second plate 2 , the dimension D7 of the second portion 42 may be 5 mm, or 6.7 mm, or 7.5 mm, or 7.8 mm, or 8 mm, or 9.7 mm, or 10 mm.

[0127] Optionally, referring to Figures 3 and 4, the second portion 42 is composed of a first sub-portion 421, a bending avoidance sub-portion 422, and a second sub-portion 423, which are distributed in sequence. The first sub-portion 421 is located in the bending avoidance sub-portion 422, close to the first end of the first portion 41, and the second sub-portion 423 is located in the bending avoidance sub-portion 422, close to the second end of the fifth plate 5. The first sub-portion 421 and the second sub-portion 423 are both parallel to the second plate 2. The bending avoidance sub-portion 422 bends from the aforementioned first end to the aforementioned second end, in a direction away from the second plate 2. The first sub-portion 421 and the second sub-portion 423 here can both serve as limiters for fasteners, and the fasteners abut against the first sub-portion 421 and the second sub-portion 423 to prevent the fasteners from rotating. By providing the bending avoidance sub-portion 422, the first sub-portion 421 and the second sub-portion 423 can be adapted to fasteners of different sizes, respectively.

[0128] Optionally, referring to Figures 3 and 4, the portion of the bending avoidance sub-section 422 close to the end of the first sub-section 421 has an angle c of 90° to 150° with the first sub-section 421. The bending avoidance sub-section 422 is flat or arc-shaped. Specifically, under normal circumstances, the fastener includes a bolt 7 and a gasket 8, and the bolt 7 is closer to the first plate 1 than the gasket 8, and the end of the gasket 8 facing away from the second plate 2 is farther away from the second plate 2 than the end of the bolt 7 facing away from the second plate 2. For example, the gasket 8 is about 2 mm larger than the bolt 7. By setting the portion of the bending avoidance sub-section 422 close to the end of the first sub-section 421 and the angle c with the first sub-section 421, as well as the shape of the bending avoidance sub-section 422, the first sub-section 421 can effectively prevent the commonly used bolt 7 from rotating, and at the same time, the second sub-section 423 can effectively prevent the commonly used gasket 8 from rotating. Here, the side of the bolt 7 abuts against the surface of the first sub-section 421 close to the opening, which prevents rotation and serves as a positioning function. Here, the side of the gasket 8 abuts against the surface of the second sub-section 423 close to the opening, which prevents rotation and serves as a positioning function.

[0129] For example, the bending avoidance sub-section 422 is flat-plate-shaped, and the angle c between the bending avoidance sub-section 422 and the end of the first sub-section 421 can be 90°, or 91°, or 110°, or 120°, or 137°, or 144.5°, or 148°, or 150°.

[0130] Optionally, a first mounting hole is defined in the main body 51, and a second mounting hole is defined in the reinforcement portion 52. The first mounting hole and the second mounting hole are connected, and a first centerline of the first mounting hole is collinear with a second centerline of the second mounting hole. The first mounting hole and the second mounting hole are used to pass through the same fastener, such as bolt 7. Referring to FIG. 4 , along the widthwise extension direction L1 of the first plate 1 , the first mounting hole is furthest from the inner wall of the first sub-section 421 , and a distance D10 between the first sub-section 421 and the first sub-section 421 is 9 mm to 13 mm. This D10 setting is relatively reasonable, and the first sub-section 421 can effectively prevent fasteners, such as bolt 7, from rotating, thereby improving installation convenience.

[0131] For example, along the extension direction L1 of the width of the first plate 1, the first mounting through hole is farthest from the inner wall of the first sub-section 421, and the distance D10 between the first mounting through hole and the first sub-section 421 can be 9 mm, or 9.7 mm, or 10 mm, or 10.8 mm, or 11 mm, or 12.7 mm, or 13 mm.

[0132] Optionally, referring to Figure 3, along the extension direction L2 of the height of the second plate 2, the distance D9 between the surface of the fifth plate 5 close to the first plate 1 and the end of the bending avoidance sub-portion 422 close to the first end is 1.3 mm to 7 mm. The setting of D9 is relatively reasonable, and the bending avoidance sub-portion 422 can effectively prevent fasteners such as gaskets 8 from rotating, thereby improving the convenience of installation.

[0133] For example, along the extension direction L2 of the height of the second plate 2, the distance D9 between the surface of the fifth plate 5 close to the first plate 1 and the end of the bending avoidance sub-portion 422 close to the first end can be 1.3 mm, or 2.7 mm, or 3 mm, or 4.2 mm, or 5.1 mm, or 6.7 mm, or 7 mm.

[0134] Optionally, the photovoltaic frame is integrally formed from a metal strip, and the process is simple. The integral forming here can be a process such as roll pressing, which is not specifically limited. The thickness of the metal strip is 0.5mm to 1.0mm. In the present application, by adjusting the structure of the photovoltaic frame, the tensile strength and other mechanical properties of the fifth plate 5 in the photovoltaic frame that is easily damaged are made greater and not easily damaged. At the same time, compared with the related art, the thickness of the metal strip is uniform, all 1mm to 1.2mm. The present application reduces the thickness of other parts of the photovoltaic frame that are not easily damaged, which can avoid material waste. At the same time, for the fifth plate 5 in the photovoltaic frame that is easily damaged, when its thickness is increased, the weight and other changes of the photovoltaic frame are relatively small. The material of the metal strip here can be a steel strip, etc., and its material is not specifically limited.

[0135] For example, the photovoltaic frame is integrally roll-formed from a steel strip, and the thickness of the steel strip can be 0.5 mm, or 0.6 mm, or 0.72 mm, or 0.75 mm, or 0.8 mm, or 0.9 mm, or 1.0 mm. For another example, the thickness of the metal strip can be 0.6 mm to 1.0 mm.

[0136] Alternatively, referring to Figure 2 , along the width direction L1 of the first plate 1, the dimension D8 of the first plate 1 may be 8 mm to 12 mm. The first plate 1 has a 180° bend at one end away from the second plate 2. This bend is located on the same side of the first plate 1 as the second plate 2 and extends toward the second plate 2. Along the width direction L1 of the first plate 1, the dimension of this bend is 1 mm to 5 mm. Along the height direction L2 of the second plate 2, the dimension of the second plate 2 is 5 mm to 10 mm.

[0137] Optionally, referring to FIG. 2 , the connection position between the first plate 1 and the second plate 2 may be provided with a chamfer, the connection position between the fourth plate 4 and the fifth plate 5 may be provided with a chamfer, and so on.

[0138] This application also provides a photovoltaic assembly, which may include: corner brackets, a photovoltaic laminate, and any of the aforementioned photovoltaic frames. The photovoltaic laminate is disposed in a mounting groove of the photovoltaic frame, and the corner brackets are disposed in a cavity of the photovoltaic frame. This photovoltaic assembly may have the same or similar beneficial effects as any of the aforementioned photovoltaic frames, and reference may be made to the other regarding the relevant aspects of the two. A sealant may be applied to the inner surface of the mounting groove to bond the photovoltaic laminate and the photovoltaic frame.

[0139] The difference between Figure 5 and Figure 6 lies in the different viewing angles, while the difference between Figure 7 and Figure 5 lies in the different viewing angles. Figure 10 is a schematic cross-sectional view of the angle code cut along the position indicated by AA in Figure 9, where the portion indicated by the thick black solid line in Figure 10 is the tangent line. Figure 11 is a schematic cross-sectional view of the angle code cut along the position indicated by BB in Figure 9.

[0140] 5 , the angle bracket 100 may include two mounting portions 10 connected at their ends. Each mounting portion 10 includes an upper plate 11, a position limiting connection portion 12, a first side plate 13, and a lower plate 14 connected in sequence. The position limiting connection portion 12 is connected to the first end of the first side plate 13, and the lower plate 14 is connected to the second end of the first side plate 13. In FIG5 , the direction L3 is the first direction, and the first end and the second end of the first side plate 13 are opposite to each other in the first direction L3. In FIG5 , the first end of the first side plate 13 is its upper end, and the second end of the first side plate 13 is its lower end.

[0141] 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 is connected to the first end of the first side plate 13, the upper plate 11 and the connection part middle plate 12 are opposite to the lower plate 14 in the first direction L3, 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.

[0142] The photovoltaic frame 200 also includes a bent plate 6 positioned between the second plate 2 and the third plate 3. The bent plate is U-shaped, with the opening of the U facing the first plate 1 and connecting the second plate 2 and the third plate 3. The photovoltaic laminate may include a solar cell, a front encapsulation film and a cover plate positioned sequentially on the light-facing side of the solar cell, and a rear encapsulation film and a back plate positioned sequentially on the backlight side of the solar cell. During normal operation of the photovoltaic laminate or solar cell, the side that primarily receives light is the light-facing side, with the backlight side and the light-facing side positioned opposite each other. For the frame 200 having the bent plate 6, after assembly, the photovoltaic laminate is positioned in the mounting groove of the photovoltaic frame 200, and the corner bracket 100 is positioned in the cavity of the frame 200. After the photovoltaic laminate, photovoltaic frame 200, and corner bracket 100 are assembled, the light-facing side of the solar cell is further away from the lower plate 14 of the corner bracket 100.

[0143] The limiting connection part 12 can be engaged with the side of the bending plate 6 of the photovoltaic frame 200 adjacent to the third plate 3, the bottom of the bending plate 6 away from the first plate 21, and the third plate 3, thereby preventing the corner code 100 from sliding out of the cavity of the photovoltaic frame 200, thereby improving the success rate of installation. The connecting part side plate 122 includes: a first part close to the connection position of the two mounting parts 10 and a second part away from the connection position of the two mounting parts 10. The upper plate 11 and the first part of the connecting part side plate 122 are connected via an arc-shaped limiting part 123. The arc-shaped limiting part 123 can limit the position of the corner code 100 in the cavity of the photovoltaic frame 200, which can further prevent the corner code 100 from sliding out of the cavity of the photovoltaic frame 200, further improving the success rate of installation and connection strength. The second part of the connecting portion side plate 122 has a first upper surface 1221 at one end away from the lower plate 14. The second part of the connecting portion side plate 122 abuts against the bending plate 6 and the third plate 3. The first upper surface 1221 of the second part away from one end of the lower plate 14 has a strong limiting effect on the bending plate 6 and the third plate 3, thereby preventing the corner code 100 from sliding out of the cavity of the photovoltaic frame 200, further improving the installation success rate and connection strength. At the same time, in the process of assembling the corner code 100 and the photovoltaic frame 200, the connecting portion middle plate 121 and the second part also play a certain guiding role, making assembly easier. At the same time, due to the good limiting effect of the second part on the bending plate 6 and the third plate 3 of the photovoltaic frame 200, the size of the connecting portion middle plate 121 can be reduced to a large extent, reducing costs and reducing weight. The second part is away from the first upper surface 1221 of one end of the lower plate 14, and is closer to the lower plate 14 than the second upper surface of the upper plate 11 is away from the lower plate 14, or the first upper surface 1221 and the second upper surface are flush, which facilitates the assembly of the corner code 100 and the photovoltaic frame 200, and can also prevent the first upper surface 1221 of the second part with clearer edges from scratching the frame.

[0144] More specifically, the inventors found that although the arc-shaped limiting portion 123 can limit the position of the corner code 100 in the cavity of the photovoltaic frame 200, the outer R-angle radius of the arc-shaped limiting portion 123 is large, and the bending plate 6 of the frame is also an outer R-angle, the limiting effect is poor, and the corner code is easy to slip outward when framing. In this application, through the setting of the second part of the above-mentioned connecting portion side plate 122, since the second part is away from the first upper surface of the lower plate and has no R-angle, it can have a better fixing effect with the frame after framing, and can reliably prevent the corner code from slipping out.

[0145] Optionally, the first upper surface of the second part at one end away from the lower plate 14 is square in shape with clear edges and corners, which has a strong limiting effect on the bending plate 6 and the third plate 3, and can further prevent the corner code 100 from slipping out of the cavity of the photovoltaic frame 200, further improving the installation success rate and connection strength.

[0146] It should be noted that there is no limitation on the specific shape of the bending plate 6 of the photovoltaic frame 200. There is no limitation on the shape of the position-limiting connection portion 12, which can be adapted to the shape of the bending plate 6 of the photovoltaic frame 200 to which it is engaged.

[0147] Optionally, referring to Figures 5 to 7, 9 and 12, the connection positions of the two mounting portions 10 are beveled 45° to form a vertical connection, so that the forces on the two mounting portions 10 are more similar and uniform, and the service life is longer.

[0148] In FIG. 5 to FIG. 7 , L5 indicates the installation direction of the left installation portion, and L4 indicates the installation direction of the right installation portion.

[0149] Optionally, referring to FIG6 , along the installation direction L5 of the installation portion where the second portion is located, the length d1 of the second portion is 3 mm to 30 mm. This second portion has a suitable length d1, providing a better abutment and limiting effect on the bent plate 6 and the third plate 3 of the photovoltaic frame 200, thereby fully preventing the corner code 100 from slipping out of the cavity of the photovoltaic frame 200. Furthermore, the length d1 of the second portion is not excessively large, thereby reducing cost and weight.

[0150] For example, the length d1 of the second portion may 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.

[0151] Optionally, the height difference between the first upper surface 1221 of the second portion, which is distal to the lower plate 14, and the second upper surface of the upper plate 11, which is distal to the lower plate 14, is 0.1 mm to 1 mm, with the direction of this height difference being parallel to the first direction L3. This height difference range is suitable and effectively prevents the first upper surface of the second portion, which has sharp edges and corners, from scratching the photovoltaic frame 200 during assembly.

[0152] 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.

[0153] Optionally, the angle between the first upper surface 1221 of the second portion away from the lower plate 14 and at least one side surface of the second portion is a right angle. The edges and corners of the first upper surface 1221 of the second portion away from the lower plate 14 and the side surface of the second portion are more distinct, which has a stronger limiting effect on the bending plate 6 and the third plate 3, thereby further preventing the corner code 100 from slipping out of the cavity of the photovoltaic frame 200, further improving the installation success rate and connection strength. For example, the angle between the first upper surface 1221 of the second portion away from the lower plate 14 and the side surface of the second portion connected to the connecting portion middle plate 121 can be a right angle.

[0154] Optionally, referring to Figures 5 and 7 , the arc-shaped stopper 123 is shaped as a quarter-circular arc. When the bending plate 6 of the photovoltaic frame 200 is an arc-shaped plate, the two shapes are more compatible, the snap-fit ​​effect is better, and the angle bracket 100 can be further prevented from slipping out of the cavity of the photovoltaic frame 200. Furthermore, the arc-shaped stopper 123 plays a good guiding role during the assembly of the angle bracket 100 and the photovoltaic frame 200.

[0155] Optionally, referring to Figures 5 and 7 , the connecting portion middle plate 121 is a quarter-circular arc-shaped plate. When the bent plate 6 of the photovoltaic frame 200 is a circular arc-shaped plate, the two shapes are more compatible, the snap-fit ​​effect is better, and the angle bracket 100 can be further prevented from slipping out of the cavity of the photovoltaic frame 200. Furthermore, during the assembly process of the angle bracket 100 and the photovoltaic frame 200, the connecting portion middle plate 121 plays a good guiding role.

[0156] Optionally, referring to Figure 7, the width d2 of the arc-shaped limiting portion 123 is 1 mm to 4 mm. The direction of the width d2 of the arc-shaped limiting portion 123 is perpendicular to the installation direction L5 of the installation portion where the arc-shaped limiting portion is located and the first direction L3, that is, parallel to the direction described in L4. The width d2 of the arc-shaped limiting portion 123 is more appropriate, and the clamping effect is better, which can further prevent the corner code 100 from slipping out of the cavity of the photovoltaic frame 200.

[0157] For example, the width d2 of the arc-shaped limiting portion 123 may 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.

[0158] Optionally, the height of the arc-shaped limit portion 123 is 1 mm to 4 mm, and the direction of the height of the arc-shaped limit portion 123 is parallel to the first direction L3. The height of the arc-shaped limit portion 123 is more appropriate, and the clamping effect is better, which can further prevent the corner code 100 from slipping out of the cavity of the photovoltaic frame 200.

[0159] 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.

[0160] Optionally, the angle between the cross-section of the first part of the connection position 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 in this way is more suitable and the snap-fit ​​effect is better, which can further prevent the corner code 100 from slipping out of the cavity of the photovoltaic frame 200.

[0161] For example, the angle between the cross-section of the first part connection position 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°.

[0162] Optionally, referring to Figures 5 to 7 and 9, the upper plate 11 of each mounting portion 10 is provided with a groove 111 or a protrusion 112 near the end where the two mounting portions 10 are connected. The protrusion 112 of the upper plate 11 of one mounting portion 10 is embedded in the groove 111 of the upper plate 11 of the other mounting portion 10, so as to connect the upper plates 11 of the two mounting portions 10, and the connection method is simple. The lower plate 14 of each mounting portion 10 is provided with a groove 111 or a protrusion 112 near the end where the two mounting portions 10 are connected. The protrusion 112 of the lower plate 14 of one mounting portion 10 is embedded in the groove 111 of the lower plate 14 of the other mounting portion 10, so as to connect the lower plates 14 of the two mounting portions 10, and the connection method is simple. Optionally, the shape of the groove 111 and the protrusion 112 is L-shaped or non-arc-shaped, with more obvious corners. The groove 111 and the protrusion 112 are not easy to disengage after biting, the connection is more reliable, and the processing window for the groove 111 and the protrusion 112 is wider and easier to process.

[0163] Optionally, referring to Figures 5 to 7, the groove 111 and the protrusion 112 are arc-shaped, and the shapes of the two are complementary. During the assembly process, the protrusion 112 can slide more easily into the groove 111, and the angle of the contact surface between the two can be pulled to the desired angle after assembly, making assembly easier. At the same time, the shapes of the two are more rounded, and the surface of the photovoltaic frame 200 is less likely to be scratched during assembly.

[0164] Optionally, after the groove 111 and the protrusion 112 are embedded, the angle between the contacting surfaces thereof is 45° to 90°, so that the groove 111 and the protrusion 112 are not easily decoupled after being engaged, and the connection is more reliable.

[0165] For example, in Figures 5 to 7, after the groove 111 and the protrusion 112 are embedded, the 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°.

[0166] Optionally, referring to Figures 5 to 11 and 12, each mounting portion 10 further includes: at least one guide plate among: a first guide plate 15, a second guide plate 16 and a third guide plate 17, the first guide 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 guide plate 16 is located at the end of the second part away from the connection position of the two mounting portions 10, and the third guide plate 17 is located at the lower plate 14 away from the end of the connection position of the two mounting portions 10.

[0167] In each mounting portion 10, the first guide plate 15 is inclined toward the direction approaching the lower plate 14, the second guide plate 16 is inclined toward the direction away from the connecting portion middle plate 121, and the third guide plate 17 is inclined toward the direction approaching the upper plate 11. By arranging the above-mentioned first guide plate 15, second guide plate 16 and third guide plate 17, the guiding effect is better, the difficulty of the background technology framing process is greatly reduced, the process window is increased, and the surface of the photovoltaic frame 200 is basically not damaged during the framing process.

[0168] Optionally, the angle between the first guide plate 15 and the upper plate 11 is 10° to 45°, that is, the angle between the third upper surface of the first guide plate 15 away from the lower plate 14 and the extended surface of the upper plate 11 away from the second upper surface of the lower plate 14 is 10° to 45°. This angle is more appropriate, has a better guiding effect, and is less likely to scratch the surface of the photovoltaic frame 200. For example, the 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°.

[0169] Optionally, referring to Figures 5 to 7 and Figures 9 to 11, the first guide plate 15 gradually narrows in a manner that at least one side is inclined in a direction away from the upper plate 11, so as to prevent the first guide plate 15 from affecting the framing. For example, the first guide plate 15 gradually narrows in a manner that one side is inclined in a direction away from the upper plate 11, or, for example, in Figures 5 to 7 and Figures 9 to 11, the first guide plate 15 gradually narrows in a manner that both sides are inclined in a direction away from the upper plate 11.

[0170] Optionally, referring to FIG6 , the angle a between the second guide plate 16 and the second portion of the connecting portion side plate 122 is 10° to 45°, that is, the angle a between the side surface of the second guide plate 16 close to the connecting portion middle plate 121 and the extended surface of the second portion of the connecting portion side plate 122 close to the side surface of the connecting portion middle plate 121 is 10° to 45°. This angle is more appropriate, has a better guiding effect, and is less likely to scratch the surface of the photovoltaic frame 200. For example, the 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°.

[0171] Optionally, referring to Figures 5 to 7 and Figures 9 to 11, the second guide plate 16 gradually narrows in a manner that at least one side is inclined in a direction away from the connecting portion side plate 122, so as to prevent the second guide plate 16 from affecting the framing. For example, the second guide plate 16 gradually narrows in a manner that one side is inclined in a direction away from the connecting portion side plate 122, or, for example, in Figures 5 to 7 and Figures 9 to 11, the second guide plate 16 gradually narrows in a manner that both sides are inclined in a direction away from the connecting portion side plate 122.

[0172] Optionally, referring to FIG6 , the angle between the third guide plate 17 and the lower plate 14 is 10° to 45°, that is, the 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 is 10° to 45°. This angle is more appropriate, has a better guiding effect, and is less likely to scratch the surface of the photovoltaic frame 200. For example, the 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°.

[0173] Optionally, the third guide plate 17 gradually narrows with at least one side inclined in a direction away from the lower plate 14 to prevent the third guide plate 17 from affecting the framing. For example, the third guide plate 17 gradually narrows with one side inclined in a direction away from the lower plate 14, or, for example, as shown in Figures 5 to 7, the third guide plate 17 gradually narrows with two sides inclined in a direction away from the lower plate 14.

[0174] Optionally, referring to FIG6 , the inclination angle c of the aforementioned at least one side of the first guide plate 15 is 10° to 30°. The appropriate setting of the inclination angle c has little effect on the framing and provides a good guiding effect.

[0175] For example, the inclination angle c may be 10°, or 12°, or 14°, or 15°, or 18.5°, or 20°, or 17°, or 22.5°, or 27.5°, or 30°.

[0176] Optionally, referring to FIG. 5 , the inclination angle g of the aforementioned at least one side of the second guide plate 16 is 10° to 30°. The appropriate setting of the inclination angle g has little effect on the framing and provides a good guiding effect.

[0177] For example, the inclination angle g may be 10°, or 12°, or 14°, or 15°, or 18.5°, or 20°, or 17°, or 22.5°, or 27.5°, or 30°.

[0178] Optionally, referring to FIG6 , the inclination angle e of at least one side of the third guide plate 17 is 10° to 30°. The appropriate setting of the inclination angle e has little effect on the framing and provides a good guiding effect.

[0179] For example, the inclination angle e may be 10°, or 12°, or 14°, or 15°, or 18.5°, or 20°, or 17°, or 22.5°, or 27.5°, or 30°.

[0180] Optionally, referring to Figure 6, the length d3 of the first guide plate 15 is 1 mm to 10 mm, and the direction of the length of the first guide plate 15 is parallel to the inclination direction of the first guide plate 15 toward the lower plate 14. The length d3 of the first guide plate 15 is relatively appropriate, cooperates well with common borders, and has a good guiding effect, and basically has no effect on framing.

[0181] 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, or 10 mm.

[0182] Optionally, referring to Figure 5, the length d4 of the second guide plate 16 is 1 mm to 10 mm, and the direction of the length of the second guide plate 16 is parallel to the inclination direction of the second guide plate 16 away from the connecting portion middle plate 121. The length d4 of the second guide plate 16 is relatively appropriate, cooperates well with common frame, and has a good guiding effect, and basically has no effect on the framing.

[0183] 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, or 10 mm.

[0184] Optionally, referring to Figure 5, the length d5 ​​of the third guide plate 17 is 1 mm to 10 mm, and the direction of the length of the third guide plate 17 is parallel to the inclination direction of the third guide plate 17 toward the working area 11. The length d5 ​​of the third guide plate 17 is relatively suitable, cooperates well with common frames, and has a good guiding effect, which basically has no effect on the framing.

[0185] 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, or 10 mm.

[0186] Optionally, the first guide plate 15 is in a rectangular shape. The shape of the first guide plate 15 is flexible and diverse, and has a good guiding effect.

[0187] Optionally, the second guide plate 16 is rectangular in shape. The shape of the second guide plate 16 is flexible and diverse, and has a good guiding effect.

[0188] Optionally, the third guide plate 17 is rectangular in shape. The shape of the third guide plate 17 is flexible and diverse, and has a good guiding effect.

[0189] Optionally, the third guide plate 17 is rectangular in shape. In the direction L4 perpendicular to the installation direction L5 of the installation portion where the third guide plate 17 is located and the first direction L3, the size of the third guide plate 17 is smaller than that of the lower plate 14. The third guide plate 17 is connected to the upper and lower surfaces of the lower plate 14 with a bevel on the side close to the side wall of the frame, which can play a good guiding role without affecting the framing.

[0190] Optionally, referring to Figures 5 to 7, and Figures 9 to 11, the upper plate 11 is shorter than both the first side plate 13 and the lower plate 14, which does not affect the framing and is conducive to installation.

[0191] Optionally, referring to Figures 5 to 8 and Figures 10 to 11, at least one rivet point 18 is provided in the lower plate 14 of the mounting portion 10, facing away from the upper plate 11. The rivet point 18 is inserted into the rivet point hole on the frame to firmly connect the frame and the corner code.

[0192] Optionally, the root of at least one side of the rivet point 18 forms a step with the lower plate 14. The step is used to fix the front and rear positions of the angle code after installation, which makes the fixation of the angle code more stable and reliable. The raised part and the bottom surface are preferably not separated after stamping, so that the raised part and the bottom surface are an integral structure, not easy to deform, and better stability.

[0193] Optionally, the number of rivet points 18 in a lower plate 14 may be 1-3 to stably and reliably fix the angle code.

[0194] Optionally, referring to FIG8 , the height d6 of the step is 0.3 mm to 1.5 mm, and the direction of the height is parallel to the aforementioned first direction. Steps within the above-mentioned height range are easy to obtain, and the diagonal code is fixed more firmly and reliably.

[0195] For example, the height d6 of the step may 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, or 1.5 mm.

[0196] Optionally, referring to Figures 5 to 8 , the depth of the rivet point 18 protruding from the lower plate 14 is wedge-shaped, with the depth being greatest near the connection between the two mounting portions. This can reduce the effect of stagnation during framing, making framing smoother and more efficient. The depth direction is parallel to the first direction L3.

[0197] Optionally, each mounting portion has at least two rivet points 18, wherein the projection dimensions of the two rivet points in the first direction L3 are different, facilitating framing. Optionally, the corner code 100 is a steel corner code, which has excellent mechanical properties and a long service life, and / or the corner code 100 is formed by integrally bending a steel strip through a stamping process, which is a mature, simple, and easy-to-process process. The thickness of the steel strip is 0.8mm-1.5mm, which is a relatively suitable thickness for the steel strip, which not only has excellent mechanical properties and is easy to form, but also avoids material waste. There is no specific limitation on the material of the steel strip. For example, the steel strip can be a zinc-aluminum-magnesium steel strip.

[0198] For example, the angle code 100 is formed by integrally bending a steel strip through a stamping process, and 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.

[0199] Optionally, referring to Figure 7, the length d7 of each mounting portion 10 along the mounting direction is 30 mm to 70 mm. The length d7 of the mounting portion 10 is within the above range and is more closely matched with the size of the existing photovoltaic 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.

[0200] Optionally, referring to FIG5 , in each mounting portion 10, the width d8 of the upper plate 11 is 5 mm to 15 mm, and 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 L3. When the width d8 of the upper plate 11 is within the above range, it is well matched with the size of the existing photovoltaic frame 200, and the photovoltaic frame 200 and the corner bracket 100 are assembled more reliably. 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.

[0201] Optionally, in each mounting portion 10, the height of the first side panel 13 is 3 mm to 20 mm, the direction of the height of the first side panel 13 is parallel to the first direction L3, and the height of the first side panel 13 is within the above range, which is relatively compatible with the size of the existing photovoltaic frame 200, and the photovoltaic frame 200 and the corner code 100 are relatively reliable. For example, the height of the first side panel 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.

[0202] Optionally, referring to Figures 5 to 7, and Figures 9 to 11, the corner code 100 further includes a corner guard 19 connecting the two mounting portions 10. The corner guard 19 is located outside the end portion of the connection position of the two mounting portions 10. The corner guard 19 can be formed of rectangular steel plates perpendicular to each other. The corner guard 19 protrudes from the upper plate 11 in the aforementioned first direction L3. In the aforementioned first direction L3, the corner guard 19 protrudes from the end portion of the upper plate 11 and is flush with the upper surface of the aforementioned first plate 21 away from the third plate 3. Alternatively, in the aforementioned first direction L3, the corner guard 19 protrudes from the end portion of the upper plate 11 and is closer to the third plate 3 than the first plate 21 is away from the upper surface of the third plate 3. That is, the corner guard 19 protrudes from the end portion of the upper plate 11 and is flush with the upper surface of the aforementioned first plate 21, or is lower than the upper surface of the first plate 21, which can prevent the sharp end portion of the corner guard 19 from scratching people or scratching the frame.

[0203] The connecting portion middle plate 121 of the angle bracket 100 is clipped onto the side of the bending plate 6 of the frame 200 adjacent to the third plate 3 and the bottom of the bending plate 6. The second portion of the connecting portion side plate 122 abuts the bending plate 6 and the third plate 3, and the upper plate 11 is higher than the bottom of the bending plate 6. The first upper surface 1221 of the second portion, which faces away from the lower plate 14, has a strong limiting effect on the bending plate 6 and the third plate 3, thereby preventing the angle bracket 100 from slipping out of the cavity of the frame 200, thereby improving the installation success rate and connection strength. At the same time, during the assembly of the angle bracket 100 and the frame 200, the connecting portion middle plate 121 and the connecting portion side plate 122 also play a certain guiding role, making assembly easier. At the same time, due to the good limiting effect of the second portion on the bending plate 6 of the frame 200, the size of the arc-shaped limiting portion 123 can be greatly reduced, reducing cost and weight.

[0204] Optionally, referring to Figures 5 to 7 and Figures 9 to 12, the corner code 100 also includes a corner guard 19 connecting the two mounting parts 10. The corner guard 19 is located outside the end of the connection position of the two mounting parts 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 aforementioned first direction L3. In the aforementioned first direction L3, the corner guard 19 protrudes from the end of the upper plate 11 and is flush with the upper surface of the first plate 21 away from the third plate 3, or, in the aforementioned first direction L3, the corner guard 19 protrudes from the end of the upper plate 11 and is closer to the third plate 3 than the first plate 21 is away from the upper surface of the third plate 3. That is, the corner guard 19 protrudes from the end of the upper plate 11 and is flush with the upper surface of the first plate 21, or is lower than the upper surface of the first plate 21, which can prevent the sharp end of the corner guard 19 from scratching people or scratching the frame.

[0205] Optionally, referring to FIG6 , the width d9 of the corner protector 19 is 1 mm to 5 mm. This width is suitable, does not affect framing, does not waste material, and is easy to process. The direction of the width of the corner protector 19 is perpendicular to the first direction. For example, the width d9 of the corner protector 19 can be 1 mm, 1.5 mm, 2 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, or 5 mm.

[0206] Optionally, in the photovoltaic module 300, in the aforementioned first direction L3, the corner guard 19 protrudes from the end of the upper plate 11, is farther away from the upper surface of the third plate 3 than the first plate 21, and is closer to the third plate 3, and the distance between the two is 0.5 mm to 1 mm. This distance is set appropriately, will not cause waste, and the mechanical properties of the photovoltaic module are better.

[0207] For example, in the photovoltaic assembly 300, in the aforementioned first direction L3, the corner guard 19 protrudes from the end of the upper plate 11, is farther away from the upper surface of the third plate 3 than the first plate 21, and is closer to the third plate 3, and the distance between the two can be: 0.5mm, or 0.52mm, or 0.55mm, or 0.61mm, or 0.66mm, or 0.7mm, or 0.71mm, or 0.78mm, or 0.8mm, or 0.84mm, or 0.87mm, or 0.89mm, or 1mm.

[0208] Optionally, the lower plate 14 of each mounting portion 10 is provided with at least one rivet point 18, spaced apart from the upper plate 11. The number of rivet points 18 in the lower plate 14 of a mounting portion 10 is not specifically limited. Positions corresponding to the rivet points 18 are provided on the fifth plate 5, each having a rivet hole of a shape matching the rivet point. The rivet points 18 are inserted into the corresponding rivet holes, thereby securely securing the angle bracket 100 and the frame 200.

[0209] It should be noted that the outline of the rivet point 18 can be arc-shaped or square as shown in FIG6 , which is not specifically limited. Some positions of the corner code can be provided with chamfers or rounded corners to avoid scratching the frame, etc., which is not specifically limited.

[0210] This application also provides a photovoltaic system, which may include: a plurality of photovoltaic modules arranged in an array. The number of photovoltaic modules in the photovoltaic system is not limited. The photovoltaic system may have the same or similar beneficial effects as any of the aforementioned photovoltaic frames and photovoltaic modules, and the relevant aspects of the three can be referenced to each other.

[0211] A fastener is provided within the cavity of the photovoltaic frame, which can securely connect the photovoltaic frame to a photovoltaic bracket, etc. The photovoltaic system can be installed on a building roof, on the ground, etc., without specific limitations. The photovoltaic system can have the same or similar beneficial effects as any of the aforementioned corner brackets 100, photovoltaic frame 200, and photovoltaic assembly 300, and reference can be made to each other regarding their related aspects. The photovoltaic system can be installed on a building roof, on the ground, etc., without specific limitations.

[0212] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0213] References herein to "one embodiment," "an embodiment," or "one or more embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Furthermore, please note that instances of the phrase "in one embodiment" do not necessarily all refer to the same embodiment.

[0214] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0215] In the claims, any reference signs placed between brackets shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in the claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present application may be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.

[0216] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A photovoltaic frame, characterized in that: include: A first plate, a second plate, a third plate, a fourth plate and a fifth plate are sequentially and continuously arranged; The first plate, the second plate and the third plate form a mounting groove having an opening; The third plate, the fourth plate and the fifth plate form a cavity having an opening; The mounting groove and the cavity are respectively located on two sides of the third plate, and the opening directions of the two are opposite; The fifth plate includes a main body and a reinforcing portion, wherein the reinforcing portion is bent 180 degrees from an end of the main body away from the fourth plate and extends toward the fourth plate.

2. The photovoltaic frame according to claim 1, characterized in that: Along the extension direction of the width of the first plate, the size of the reinforcing portion is greater than or equal to 1 / 4 of the size of the main body portion and smaller than the size of the main body portion.

3. The photovoltaic frame according to claim 2, characterized in that: Along the extension direction of the width of the first plate, the size of the reinforcing portion is 0.4 to 0.9 times the size of the main body portion; and / or, Along the extension direction of the width of the first plate, the size of the reinforcing portion is 13 mm to 28 mm, and the size of the main body is 15 mm to 30 mm; and / or the reinforcing portion is located on a side of the main body close to the third plate.

4. The photovoltaic frame according to claim 1, characterized in that: Also includes: A bending plate is located between the second plate and the third plate; the bending plate starts to bend from the end of the second plate close to the third plate in a direction away from the first plate and connects to the third plate.

5. The photovoltaic frame according to claim 4, characterized in that: Along the extension direction of the width of the first plate: the size of the main body is greater than the sum of the size of the third plate and the size of the bent plate; and / or, The bending plate comprises: a connecting portion close to the third plate and connected to the third plate, wherein the angle between the connecting portion and the third plate is greater than or equal to 90° and less than 180°; and / or, Along the extension direction of the width of the first plate, the maximum dimension inside the bent plate is less than or equal to 5 mm; and / or, along the extension direction of the width of the first plate: the sum of the size of the third plate and the size of the bent plate is 8 mm to 12 mm; And / or, along the extension direction of the height of the second plate, the dimension between the end point of the bent plate farthest from the first plate and the edge line of the third plate farthest from the first plate is 0.5 mm to 3 mm; And / or, the connecting portion of the bent plate is vertically connected to the third plate.

6. The photovoltaic frame according to any one of claims 1 to 5, characterized in that: The fourth plate includes: a first portion close to the third plate and a second portion close to the fifth plate, the first portion and the second portion being continuous; The angle between the first portion and the third plate is greater than 90° and less than or equal to 160°; and / or, along the extension direction of the height of the second plate, the size of the first portion is 8 mm to 30 mm; And / or, along the extension direction of the height of the second plate, the size of the second portion is 5 mm to 10 mm.

7. The photovoltaic frame according to claim 6, characterized in that: The second portion is composed of a first sub-portion, a bending avoidance sub-portion, and a second sub-portion which are distributed in sequence; the first sub-portion is located in the bending avoidance sub-portion, close to the first end of the first portion; the second sub-portion is located in the bending avoidance sub-portion, close to the second end of the fifth plate; the first sub-portion and the second sub-portion are both parallel to the second plate; The bending avoidance sub-portion bends from the first end to the second end in a direction away from the second plate.

8. The photovoltaic frame according to claim 7, characterized in that: The angle between the portion of the bending avoidance sub-portion close to the first sub-portion and the first sub-portion is 90° to 150°; And / or, the bending avoidance sub-portion is in the shape of a flat plate or an arc plate; And / or, a first mounting through hole is formed on the main body, a second mounting through hole is formed on the reinforcement portion, the first mounting through hole is connected to the second mounting through hole, and a first center line of the first mounting through hole is collinear with a second center line of the second mounting through hole; Along the extension direction of the width of the first plate, the first mounting through hole is farthest from the first sub-section. The inner wall is 9 mm to 13 mm away from the first sub-portion; And / or, along the extension direction of the height of the second plate, the distance between the surface of the fifth plate close to the first plate and the end of the bending avoidance sub-portion close to the first end is 1.3 mm to 7 mm.

9. The photovoltaic frame according to any one of claims 1 to 5, characterized in that: The photovoltaic frame is integrally formed of a metal strip, and the thickness of the metal strip is 0.5 mm to 1 mm.

10. A photovoltaic module, characterized in that: include: An angle code, a photovoltaic laminate, and a photovoltaic frame as described in any one of claims 1 to 9, wherein the photovoltaic laminate is arranged in a mounting groove of the photovoltaic frame, and the angle code is arranged in the cavity.

11. The photovoltaic module according to claim 10, characterized in that: The photovoltaic 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; the corner code includes: two mounting parts with ends connected together; 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; 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; 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.

12. The photovoltaic module according to claim 11, characterized in that: The shape of the first upper surface is square; and / or, Along the installation direction of the installation part where the second part is located, the length of the second part is 3mm to 30mm; and / or, the height difference between the first upper surface and the second upper surface in the first direction is 0.1mm to 1mm; and / or, the angle between the first upper surface and at least one side surface of the second part is a right angle; and / or, the shape of the arc-shaped limiting portion is 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°.

13. The photovoltaic module according to claim 11, 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.

14. The photovoltaic module according to claim 13, 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.

15. The photovoltaic module according to claim 14, 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°.

16. The photovoltaic module according to claim 13, 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; and / or, the shape of the first guide plate is rectangular; and / or, The second guide plate is in a rectangular shape; and / or, The third guide plate is in a rectangular shape.

17. The photovoltaic module according to claim 12, characterized in that: The upper plate is shorter than the first side plate and the lower plate; and / or, at least one rivet point away from the upper plate is provided in the lower plate of each mounting portion; a rivet point hole matching the shape 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; and / or, The angle bracket is a steel angle bracket; and / or, 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 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.

18. The photovoltaic module according to claim 17, 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. 19 . The photovoltaic assembly according to claim 18 , 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.

20. A photovoltaic system, characterized in that: A plurality of photovoltaic modules according to any one of claims 10 to 19 arranged in an array.

Images