Corner brace for photovoltaic module

Abstract

The utility model discloses a corner connector for a photovoltaic module. The corner connector comprises an upper flat plate, a lower flat plate, side plates and corner protectors, the upper flat plate comprises a first upper flat plate and a second upper flat plate; the lower flat plate comprises a first lower flat plate and a second lower flat plate; the first upper flat plate and the second upper flat plate are integrally formed; the first lower flat plate and the second lower flat plate are integrally formed. Compared with a mortise and tenon structure of a plane structure, the firmness and the stability are higher, the perpendicularity of the two fixed ends is influenced by the punching precision of the upper flat plate and the lower flat plate, and the vertical precision is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to in photovoltaic module technical field, concretely relates to a corner code for photovoltaic module. BACKGROUND

[0002] Photovoltaic module four around frame need to use sealant fixed, frame four corners need to use corner code to carry out permanent fixed when.

[0003] At present, the corner code structure is generally composed of two mutually perpendicular fixed ends, and the two fixed ends are connected and fixed through the setting of the concave-convex mortise and tenon structure. However, the corner code connected by the mortise and tenon structure cannot limit the dislocation in the up-down direction, is easy to cause the deformation of the corner code, and has poor fixed connection effect; the cooperation size precision requirement is high, the precision requirement that the two fixed ends keep perpendicular to each other cannot be guaranteed, and a material with high thickness and strength must be used. SUMMARY

[0004] The utility model aims at providing a corner code for photovoltaic module for solving the above problems.

[0005] The technical scheme of the utility model is: a corner code for photovoltaic module, comprising:

[0006] Upper flat plate, lower flat plate, side plate, corner guard;

[0007] The upper flat plate and the lower flat plate are parallel to each other, and are used to fix the horizontal and vertical positions of the corner code in the frame cavity after the frame is assembled;

[0008] The side plate is located between the upper flat plate and the lower flat plate, and is perpendicular to the upper flat plate and the lower flat plate, and is used to support the upper flat plate and the lower flat plate;

[0009] The corner guard is located on the outer side of the upper flat plate and the lower flat plate, and is perpendicular to the upper flat plate and the lower flat plate, and is used to protect the protruding foot of the frame after the frame is assembled, and reduce personal injury and stress deformation of the frame;

[0010] The upper flat plate comprises a first upper flat plate and a second upper flat plate; and the lower flat plate comprises a first lower flat plate and a second lower flat plate.

[0011] The first upper flat plate and the second upper flat plate are integrally formed; and the first lower flat plate and the second lower flat plate are integrally formed.

[0012] Preferably, the side plate comprises a first side plate and a second side plate; the first side plate is located between the first upper flat plate and the first lower flat plate, and is integrally formed with the first upper flat plate and the second upper flat plate by stamping and bending; and the second side plate is located between the second upper flat plate and the second lower flat plate, and is connected with the second upper flat plate and the second lower flat plate through a clamping structure.

[0013] Preferably, the corner protector is fixedly connected with the first side plate at one end through an inclined surface one and fixedly connected with the second side plate at the other end through an inclined surface two.

[0014] Preferably, the corner protector is integrally formed with the first side plate and the second side plate.

[0015] Preferably, the second side plate comprises a first clamping portion, a second clamping portion, a third clamping portion and a fourth clamping portion; the second upper flat plate comprises a first clamping groove and a second clamping groove; and the second lower flat plate comprises a third clamping groove and a fourth clamping groove.

[0016] Preferably, the first clamping portion and the second clamping portion are respectively used for clamping the first clamping groove and the second clamping groove; and the third clamping portion and the fourth clamping portion are respectively used for clamping the third clamping groove and the fourth clamping groove.

[0017] Preferably, after the first clamping portion is clamped with the first clamping groove, the first clamping portion protrudes from the first clamping groove and is used for positioning with the frame positioning groove.

[0018] After the second clamping portion is clamped with the second clamping groove, the second clamping portion does not protrude from the second clamping groove and is used for interference fit to be fixed.

[0019] After the third clamping portion is clamped with the third clamping groove, the third clamping portion protrudes from the third clamping groove and is used for fixing with the rivet hole on the C surface of the frame after the frame is assembled, so as to limit the longitudinal position of the corner brace.

[0020] After the fourth clamping portion is clamped with the fourth clamping groove, the fourth clamping portion does not protrude from the fourth clamping groove and is used for interference fit to be fixed.

[0021] Preferably, the tail of the third clamping portion comprises a wedge shape and a right angle shape.

[0022] Preferably, the first clamping portion is at least one; the second clamping portion is at least one; the third clamping portion is at least one; and the fourth clamping portion is at least one.

[0023] Preferably, the end of the upper flat plate and the end of the lower flat plate are provided with a guide plate inclined to the inside of the corner brace; the guide plate on the lower flat plate is narrowed on both sides to the end, so as to facilitate the fixed end of the corner brace to be assembled into the frame cavity; and the guide plate of the first lower flat plate is provided with an anti-collision portion, which is protruded to the outside of the side plate or is leveled, so as to prevent the first side plate from colliding with the outer wall of the frame during the assembly of the frame.

[0024] The utility model discloses the beneficial effect lies in:

[0025] 1. The firmness and stability are stronger than the mortise and tenon structure of plane structure, and the perpendicularity of two fixed ends is influenced by the punching precision of the upper flat plate and the lower flat plate, and the vertical precision is higher.

[0026] 2. The positioning pin of the upper flat plate of the corner brace is matched with the positioning opening of the frame, and the cooperation of the lower flat plate and the space at the bottom of the frame makes the corner brace have better horizontal position limiting effect.

[0027] 3、Rivet point and rivet point pin tail through the setting of vertical structure and wedge structure to take into account the firmness and drawing force of angle code.

[0028] 4、The size of the anti-collision part of the left fixed end lower plate guide plate can be arbitrarily adjusted, which can better prevent collision. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a schematic diagram of an existing angle code;

[0030] Figure 2 It is a schematic diagram of an assembled angle code provided by the embodiment of the application;

[0031] Figure 3 It is an expanded schematic diagram of the design structure of an angle code provided by the embodiment of the application;

[0032] Figure 4 It is a schematic diagram of the cooperation of an angle code and a frame positioning opening provided by the embodiment of the application;

[0033] Figure 5 It is a schematic diagram of the cooperation of an angle code and a frame provided by the embodiment of the application;

[0034] Figure 6 It is a schematic diagram of the cooperation of an angle code and a frame provided by the embodiment of the application;

[0035] Figure 7 It is a schematic diagram of a rivet point in an angle code provided by the embodiment of the application;

[0036] Figure 8 It is a schematic diagram of a guide plate and an anti-collision part in an angle code provided by the embodiment of the application.

[0037] Legend: upper plate-1, lower plate-2, side plate-3, angle guard-4;

[0038] First upper plate-11, second upper plate-12;

[0039] First lower plate-21, second lower plate-22;

[0040] First side plate-31, second side plate-32;

[0041] First clamping part-321, second clamping part-322, third clamping part-323, fourth clamping part-324;

[0042] First clamping groove-121, second clamping groove-122;

[0043] Third clamping groove-221, fourth clamping groove-222. DETAILED DESCRIPTION

[0044] The utility model will be further described below in combination with the drawings and specific embodiments, so that the skilled in the art can better understand the utility model and can be implemented, the implementation mode of the utility model is not limited to this.

[0045] The transverse direction of the corner code is a horizontal direction parallel to the upper plate and the lower plate; the vertical direction of the frame is a vertical direction perpendicular to the upper plate and the lower plate of the corner code.

[0046] C face of the frame: in the structure of the photovoltaic module, the "C face" of the frame refers to the inner side surface of the frame, that is, the surface directly contacting the glass cover plate, EVA, cell piece and back plate of the photovoltaic module.

[0047] Example 1

[0048] The photovoltaic module needs to be fixed with sealant when framed, and the sealant is a viscous liquid when framed. After framing, it gradually solidifies by absorbing water vapor in the air. Therefore, the four corners need to be permanently fixed with corner codes when framing, which not only ensures the framing size of the photovoltaic module, but also provides a certain fixing effect when the photovoltaic module is used outdoors under load. Currently, the mainstream photovoltaic module on the market uses an aluminum alloy frame. However, with the industry's cost reduction and efficiency improvement, the market share of steel frames is increasing year by year due to their low cost. The current market-leading steel frame is an open steel frame, which uses a steel corner code at both ends. The steel corner code and the steel frame are made of hot-dipped galvanized aluminum magnesium steel strips, which are integrally formed by continuous stamping equipment. The corner code is used to connect and fix the long and short frames. Therefore, the corner code structure is generally composed of two mutually perpendicular fixed ends, which are connected and fixed by setting a mortise and tenon structure between the two fixed ends, as shown in Figure 1 .

[0049] As shown in Figure 2 , the corner code is formed by continuous stamping and bending of a galvanized aluminum magnesium steel strip after punching. It includes two mutually perpendicular fixed ends of the upper plate 1, which is an integral structure. At the same time, the lower plate 2 is also an integral structure, which ensures the vertical precision and firmness of the two fixed ends on the upper plate 1 and the lower plate 2.

[0050] The corner code for the photovoltaic module comprises:

[0051] The upper plate 1, the lower plate 2, the side plate 3 and the corner guard 4;

[0052] The upper plate 1 and the lower plate 2 are parallel to each other, and are used to fix the transverse and vertical positions of the corner code in the frame cavity after framing;

[0053] The width of the lower plate 2 is slightly smaller than the width of the inside of the bottom of the frame;

[0054] The side plate 3 is located between the upper plate 1 and the lower plate 2 and is perpendicular to the upper plate 1 and the lower plate 2, and is used to support the upper plate 1 and the lower plate 2;

[0055] The corner guard 4 is located on the outer side of the upper plate 1 and the lower plate 2 and is perpendicular to the upper plate 1 and the lower plate 2, and is used to protect the protruding foot of the frame after the frame is assembled, and reduce personal injury and deformation of the frame under stress;

[0056] As shown in Figure 3 , it is the structure expansion of the corner code design.

[0057] The upper plate 1 includes a first upper plate 11 and a second upper plate 12; the lower plate 2 includes a first lower plate 21 and a second lower plate 22;

[0058] The first upper plate 11 and the second upper plate 12 are integrally formed; the first lower plate 21 and the second lower plate 22 are integrally formed.

[0059] The side plate 3 includes a first side plate 31 and a second side plate 32; the first side plate 31 is located between the first upper plate 11 and the first lower plate 21 and is integrally formed with the first upper plate 11 and the second upper plate 12 by stamping and bending; the second side plate 32 is located between the second upper plate 12 and the second lower plate 22 and is connected with the second upper plate 12 and the second lower plate 22 through a clamping structure.

[0060] The second side plate 32 includes a first clamping portion 321, a second clamping portion 322, a third clamping portion 323, and a fourth clamping portion 324; the second upper plate 12 includes a first clamping groove 121 and a second clamping groove 122; the second lower plate 22 includes a third clamping groove 221 and a fourth clamping groove 222.

[0061] The first clamping portion 321 and the second clamping portion 322 are used for clamping the first clamping groove 121 and the second clamping groove 122 respectively; the third clamping portion 323 and the fourth clamping portion 324 are used for clamping the third clamping groove 221 and the fourth clamping groove 222 respectively.

[0062] As shown in Figure 2 and Figure 3 , the first clamping portion 321 protrudes from the first clamping groove 121 after clamping, and is used for positioning with the positioning groove of the frame;

[0063] The second clamping portion 322 does not protrude from the second clamping groove 122 after clamping, and is used for interference fit to fix each other;

[0064] The third clamping portion 323 protrudes from the third clamping groove 221 after clamping, and is used for fixing with the rivet hole on the C surface of the frame after the frame is assembled, to limit the longitudinal position of the corner code;

[0065] The fourth engaging part 324 is not protruded from the fourth engaging slot 222 after engaging with the fourth engaging slot 222, and is used for mutual fixation by interference fit.

[0066] As shown in Figure 4 , Figure 5 , one end of the corner guard 4 is fixedly connected with the first side plate 31 through the inclined surface one, and the other end is fixedly connected with the second side plate 32 through the inclined surface two.

[0067] The corner guard 4 is integrally formed with the first side plate 31 and the second side plate 32.

[0068] The first engaging part 321, the second engaging part 322, the third engaging part 323 and the fourth engaging part 324 are in cuboid structure, the length is slightly longer than the length of the corresponding first engaging slot 121, the second engaging slot 122, the third engaging slot 221 and the fourth engaging slot 222, the width is approximately or slightly smaller than the width of the first engaging slot 121, the second engaging slot 122, the third engaging slot 221 and the fourth engaging slot 222, and they are connected and fixed by interference fit.

[0069] As shown in Figure 4 , the top end of the first engaging part 321 is stamped to have a width smaller than the lower part, so as to facilitate the alignment with the first engaging slot 121 when being bent, and the height after protruding the first engaging slot 121 and the upper surface of the upper plate 1 is approximately or slightly lower than the plate thickness of the frame positioning slot; the first engaging part 321 plays a positioning role, a positioning opening is punched at the corresponding position of the corner of the frame, the width of the opening is matched or slightly larger than the width of the positioning pin, and the opening is provided with a trumpet mouth or a rounded corner treatment, facilitating the frame positioning.

[0070] Under the cooperation of the positioning pin and the positioning opening and the cooperation of the lower plate and the inner part of the bottom of the frame, the transverse position of the corner code is better fixed.

[0071] As shown in Figure 5 and 6, the third engaging part 323 protrudes from the lower plate 2 to become a rivet point pin on one side of the lower plate 2, and a rivet point hole is arranged at the corresponding position of the C surface of the frame to limit the position of the corner code.

[0072] As shown in Figure 6 , in order to balance the sufficient pulling force of the corner code in the longitudinal direction and the non-loose effect after installation, the third engaging part 323 is composed of at least two rivet point pins with different shapes, the head part of the rivet point pin is cut into a wedge-shaped structure for easy installation of the corner code into the frame, at least one tail part of the rivet point pin is in wedge-shaped structure to prevent the corner code from loosening, and the tail part of one rivet point pin is perpendicular to the lower plate to achieve a better pulling force effect, and a small gap is left between the tail part of the rivet point pin with the wedge-shaped structure and the tail part of the rivet point hole on the frame, so that the rivet point pin with the wedge-shaped structure tail part can play the effect of preventing the corner code from loosening.

[0073] As shown in Figure 7As shown, two or more rivet points are arranged on the lower plate of the other fixed end of the corner code, the rivet points are formed by stamping, the height is less than or equal to the thickness of the frame C surface, and the square hole opened on the frame C surface is matched, and the principle of the rivet point pin of the other fixed end is similar, the head of the two rivet points is a wedge-shaped structure, at least one tail is perpendicular to the lower plate, and one tail is a wedge-shaped structure.

[0074] The root of the corner code is provided with a corner guard 4, which can protect the splicing position after being installed in the frame and prevent personal injury.

[0075] As shown in the drawings, Figure 8 As shown, the end of the upper plate 1 and the lower plate 2 is provided with a guide plate inclined to the inside of the corner code, the inclination angle is 5-30°, the length is 3-15mm, and the two sides of the guide plate are narrowed to the end (except the outside of the upper plate), so that the fixed end of the corner code is installed in the frame cavity during installation; wherein the guide plate of the first lower plate 21 is provided with a collision prevention part, which is outside the side plate or flat, preventing the first side plate 31 from colliding with the outer wall of the frame during installation.

[0076] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted as including all changes and modifications falling within the scope of the present application.

[0077] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A corner bracket for photovoltaic modules, characterized in that, The application relates to a frame structure for a frame, which comprises: an upper flat plate (1), a lower flat plate (2), a side plate (3) and a corner guard (4); the upper flat plate (1) and the lower flat plate (2) are parallel to each other and are used for positioning the horizontal and vertical positions of the corner code in the frame cavity after the frame is assembled; the side plate (3) is located between the upper flat plate (1) and the lower flat plate (2) and is perpendicular to the upper flat plate (1) and the lower flat plate (2), and is used for supporting the upper flat plate (1) and the lower flat plate (2); the corner guard (4) is located on the outer side of the upper flat plate (1) and the lower flat plate (2) and is perpendicular to the upper flat plate (1) and the lower flat plate (2), and is used for protecting the protruding foot of the frame after the frame is assembled, reducing personal injury and deformation of the frame under stress; the upper flat plate (1) comprises a first upper flat plate (11) and a second upper flat plate (12); and the lower flat plate (2) comprises a first lower flat plate (21) and a second lower flat plate (22); the first upper flat plate (11) and the second upper flat plate (12) are integrally formed; and the first lower flat plate (21) and the second lower flat plate (22) are integrally formed.

2. An angle for a photovoltaic module according to claim 1, wherein, the side plate (3) comprises a first side plate (31) and a second side plate (32); the first side plate (31) is located between the first upper flat plate (11) and the first lower flat plate (21) and is integrally formed with the first upper flat plate (11) and the second upper flat plate (12) through stamping and bending; and the second side plate (32) is located between the second upper flat plate (12) and the second lower flat plate (22) and is connected with the second upper flat plate (12) and the second lower flat plate (22) through a clamping structure.

3. An angle for a photovoltaic module according to claim 2, wherein, the corner guard (4) is fixedly connected with the first side plate (31) through an inclined surface one at one end and is fixedly connected with the second side plate (32) through an inclined surface two at the other end.

4. An angle for a photovoltaic module according to claim 3, wherein, the corner guard (4) is integrally formed with the first side plate (31) and the second side plate (32).

5. An angle for a photovoltaic module according to claim 2, wherein, the second side plate (32) comprises a first clamping part (321), a second clamping part (322), a third clamping part (323) and a fourth clamping part (324); the second upper flat plate (12) comprises a first clamping groove (121) and a second clamping groove (122); and the second lower flat plate (22) comprises a third clamping groove (221) and a fourth clamping groove (222).

6. An angle for a photovoltaic module according to claim 5, wherein, the first clamping part (321) and the second clamping part (322) are used for clamping the first clamping groove (121) and the second clamping groove (122) respectively; and the third clamping part (323) and the fourth clamping part (324) are used for clamping the third clamping groove (221) and the fourth clamping groove (222) respectively.

7. An angle for a photovoltaic module according to claim 5, wherein, the first clamping part (321) protrudes from the first clamping groove (121) after clamping the first clamping groove (121) and is used for positioning the frame positioning groove; the second clamping part (322) does not protrude from the second clamping groove (122) after clamping the second clamping groove (122) and is used for mutual fixation through interference fit; the third clamping part (323) protrudes from the third clamping groove (221) after clamping the third clamping groove (221) and is used for fixing the rivet hole on the C surface of the frame after the frame is assembled and limiting the longitudinal position of the corner code; the fourth clamping part (324) does not protrude from the fourth clamping groove (222) after clamping the fourth clamping groove (222) and is used for mutual fixation through interference fit.

8. An angle for a photovoltaic module according to claim 5, wherein, The tail of the third engaging part (323) comprises a wedge shape and a right angle shape.

9. An angle for a photovoltaic module according to claim 5, wherein, The first engaging part (321) is at least one; the second engaging part (322) is at least one; the third engaging part (323) is at least two; and the fourth engaging part (324) is at least one.

10. An angle for a photovoltaic module according to claim 2, wherein, The end of the upper flat plate (1) and the lower flat plate (2) is provided with a guide plate which is inclined to the inner side of the corner code; wherein the guide plate in the lower flat plate (2) is narrowed to the end on both sides, so that the fixed end of the corner code is installed into the frame cavity when the frame is installed; the guide plate of the first lower flat plate (21) is provided with an anti-collision part which is outside the side plate or flat, preventing the first side plate (31) from colliding with the outer side wall of the frame when the frame is installed.

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