Corner connector for connecting solar module frame

Abstract

The utility model relates to a corner connector for connecting a frame of a solar module. The corner connector comprises a left vertical plate, a right vertical plate, a first connecting plate, a first convex pin, a third connecting plate, a lower transverse plate, an upper transverse plate, a second connecting plate, a second convex pin, a fourth connecting plate and a reinforcing rib, a first step structure is arranged on the right side face of the right vertical plate, a second step structure is arranged on the upper surface of the upper transverse plate, second sawteeth are arranged at the front end, corresponding to the upper portion of the first step structure, of the right vertical plate, and fourth sawteeth are arranged at the front end, corresponding to the right side of the second step structure, of the upper transverse plate. A first pressure relief hole is formed in an area defined by the left vertical plate, the reinforcing rib, the right vertical plate and the third connecting plate, and a second pressure relief hole is formed in an area defined by the lower transverse plate, the fourth connecting plate, the upper transverse plate and the reinforcing rib. When the solar module frame connecting device is used for connecting the solar module frame, the anti-drawing capability between the solar module frame and the corner connector can be improved, and the connecting stability of the corner connector is improved, so that the strength of the solar module frame is improved, and an upper glass surface and a lower glass surface in the solar module are effectively prevented from being broken.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic components, and specifically discloses an angle code for connecting a solar component frame. Background Art

[0002] Photovoltaic composite materials are gradually replacing aluminum and becoming a new choice of frame material due to their good weather resistance, aging resistance, fire resistance, and UV resistance. The main components of photovoltaic composite materials are polyurethane resin and glass fiber, which can be made into photovoltaic module frames after pultrusion. Photovoltaic composite frames have the characteristics of low material cost, excellent weather resistance, insulation, light weight and beautiful appearance.

[0003] At present, the frame connection scheme still uses the aluminum frame connection scheme, that is, aluminum alloy corner brackets are used as connectors, and the installation method is to punch holes in the frame, relying on the plastic deformation of the frame to bite the serrated structure on the corner bracket. However, composite materials are both brittle and anisotropic, and the punching process is prone to vertical cracks in the frame, which is not very compatible with composite material frames. In addition, the thermal expansion coefficients of aluminum alloy corner bracket materials and frame composite materials are different, and the connection is prone to failure in areas with large temperature differences. Summary of the invention

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a corner code that can improve the pull-out resistance between the solar module frame and the corner code, enhance the connection stability, improve the strength of the solar module frame, and effectively prevent the upper and lower glass surfaces in the solar module frame from breaking.

[0005] According to the technical solution provided by the utility model, the angle code for connecting the frame of the solar module includes a left vertical plate, a right vertical plate, a first connecting plate, a first protruding pin, a third connecting plate, a lower horizontal plate, an upper horizontal plate, a second connecting plate, a second protruding pin, a fourth connecting plate and reinforcing ribs;

[0006] The lower end of the left vertical plate is fixed to the left end of the lower horizontal plate, the left side surface of the left vertical plate is vertically arranged with the lower surface of the lower horizontal plate, the lower end of the right vertical plate is fixed to the left end of the upper horizontal plate, the right side surface of the right vertical plate is vertically arranged with the upper surface of the upper horizontal plate, the upper end of the right vertical plate is connected to the upper end of the left vertical plate through a first connecting plate, and the right end of the upper horizontal plate is connected to the right end of the lower horizontal plate through a second connecting plate;

[0007] A first step structure is provided on the right side surface of the right vertical plate, the high surface of the first step structure is located below the low surface, the high surface and the low surface of the first step structure are parallel to the left side surface of the left vertical plate, a first protruding pin is fixed on the low surface, the first protruding pin is a wedge-shaped body, and the thickness of the first protruding pin is gradually reduced in the direction from bottom to top;

[0008] The left side surface of the right vertical plate and the right side surface of the left vertical plate at the position corresponding to the first step structure are connected together through a third connecting plate, and the thickness of the third connecting plate gradually decreases from both ends to the middle thereof;

[0009] A second step structure is provided on the upper surface of the upper horizontal plate, the high surface of the second step structure is located on the left side of the low surface, the high surface and the low surface of the second step structure are parallel to the lower surface of the lower horizontal plate, a second protruding pin is fixed on the low surface, the second protruding pin is a wedge-shaped body, and the thickness of the second protruding pin is gradually reduced from left to right;

[0010] The lower surface of the upper horizontal plate and the upper surface of the lower horizontal plate at the position corresponding to the second step structure are connected together through a fourth connecting plate, and the fourth connecting plate is gradually reduced in thickness from both ends to the middle thereof;

[0011] The connection part between the left vertical plate and the lower horizontal plate is connected to the connection part between the right vertical plate and the upper horizontal plate through a reinforcing rib;

[0012] A second sawtooth is provided at the front end of the right vertical plate above the first step structure, and a fourth sawtooth is provided at the front end of the upper horizontal plate on the right side of the second step structure;

[0013] A first pressure relief hole is provided in the area surrounded by the left vertical plate, the reinforcing ribs, the right vertical plate and the third connecting plate, and the length direction of the first pressure relief hole is the front-to-back direction;

[0014] A second pressure relief hole is provided in the area surrounded by the lower transverse plate, the fourth connecting plate, the upper transverse plate and the reinforcing ribs, and the length direction of the second pressure relief hole is the front-to-back direction.

[0015] Preferably, the first connecting plate is a V-shaped plate or a U-shaped plate, and the second connecting plate is a V-shaped plate or a U-shaped plate.

[0016] Preferably, a first sawtooth is provided at the front end portion of the left vertical plate above the third connecting plate, and a third sawtooth is provided at the front end portion of the lower horizontal plate on the right side of the fourth connecting plate.

[0017] Preferably, in the direction from bottom to top, the thickness of the left vertical plate above the corresponding third connecting plate is gradually reduced, and the thickness of the right vertical plate corresponding to the low surface of the first step structure is gradually reduced.

[0018] Preferably, in the direction from left to right, the thickness of the lower transverse plate corresponding to the right side of the fourth connecting plate is gradually reduced, and the thickness of the upper transverse plate corresponding to the low surface of the second step structure is gradually reduced.

[0019] The use of the utility model for connecting the solar module frame can improve the pull-out resistance between the solar module frame and the corner bracket, improve the stability of the corner bracket connection, thereby improving the strength of the solar module frame and effectively preventing the upper and lower glass surfaces in the solar module from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the front view of Example 1.

[0021] Figure 2 It is a left side view of Example 1.

[0022] Figure 3 This is a stereogram of Example 1.

[0023] Figure 4 This is a stereogram of Example 2. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with specific embodiments.

[0025] Example 1

[0026] A solar panel frame connection angle code, such as Figure 1-3 As shown, it includes a left vertical plate 1, a right vertical plate 2, a first connecting plate 3, a first protruding pin 4, a third connecting plate 5, a lower horizontal plate 6, an upper horizontal plate 7, a second connecting plate 8, a second protruding pin 9, a fourth connecting plate 10 and a reinforcing rib 11;

[0027] The lower end of the left vertical plate 1 is fixed to the left end of the lower horizontal plate 6, the left side surface of the left vertical plate 1 is vertically arranged with the lower surface of the lower horizontal plate 6, the lower end of the right vertical plate 2 is fixed to the left end of the upper horizontal plate 7, the right side surface of the right vertical plate 2 is vertically arranged with the upper surface of the upper horizontal plate 7, the upper end of the right vertical plate 2 is connected to the upper end of the left vertical plate 1 through the first connecting plate 3, and the right end of the upper horizontal plate 7 is connected to the right end of the lower horizontal plate 6 through the second connecting plate 8;

[0028] A first step structure is provided on the right side surface of the right vertical plate 2, the high surface of the first step structure is located below the low surface, the high surface and the low surface of the first step structure are parallel to the left side surface of the left vertical plate 1, and a first protruding pin 4 is fixed on the low surface, the first protruding pin 4 is a wedge-shaped body, and the thickness of the first protruding pin 4 is gradually reduced in the direction from bottom to top;

[0029] The left side surface of the right vertical plate 2 corresponding to the first step structure position is connected to the right side surface of the left vertical plate 1 through a third connecting plate 5, and the third connecting plate 5 is gradually reduced in thickness from both ends to the middle thereof;

[0030] The upper surface of the upper horizontal plate 7 is provided with a second step structure, the high surface of the second step structure is located on the left side of the low surface, the high surface and the low surface of the second step structure are parallel to the lower surface of the lower horizontal plate 6, and a second protruding pin 9 is fixed on the low surface. The second protruding pin 9 is a wedge-shaped body, and the thickness of the second protruding pin 9 is gradually reduced from left to right.

[0031] The lower surface of the upper horizontal plate 7 and the upper surface of the lower horizontal plate 6 at the position corresponding to the second step structure are connected together through a fourth connecting plate 10, and the fourth connecting plate 10 is gradually reduced in thickness from both ends to the middle thereof;

[0032] The connection part between the left vertical plate 1 and the lower horizontal plate 6 is connected to the connection part between the right vertical plate 2 and the upper horizontal plate 7 through a reinforcing rib 11 .

[0033] The first connecting plate 3 is a V-shaped plate, and the second connecting plate 8 is a V-shaped plate.

[0034] A second sawtooth 2.1 is provided at the front end of the right vertical plate 2 above the first step structure, and a fourth sawtooth 7.1 is provided at the front end of the upper horizontal plate 7 on the right side of the second step structure.

[0035] In the direction from bottom to top, the thickness of the right vertical plate 2 corresponding to the low-level surface of the first step structure is gradually reduced, and the thickness of the left vertical plate 1 above the corresponding third connecting plate 5 is gradually reduced.

[0036] In the direction from left to right, the thickness of the upper horizontal plate 7 corresponding to the low-level surface of the second step structure is gradually reduced, and the thickness of the lower horizontal plate 6 corresponding to the right side of the fourth connecting plate 10 is gradually reduced.

[0037] A first pressure relief hole 12 is provided in the area surrounded by the left vertical plate 1, the reinforcing rib 11, the right vertical plate 2 and the third connecting plate 5, and the length direction of the first pressure relief hole 12 is the front-to-back direction;

[0038] A second pressure relief hole 13 is provided in an area surrounded by the lower transverse plate 6 , the fourth connecting plate 10 , the upper transverse plate 7 and the reinforcing rib 11 , and the length direction of the second pressure relief hole 13 is the front-to-back direction.

[0039] In Example 1, the protrusion heights of the first protrusion pin 4 and the second protrusion pin 9 are 0-15 mm, the width of the reinforcing rib 11 is 3-10 mm, and the total length of the second sawtooth 2.1 and the fourth sawtooth 7.1 is 10-55 mm.

[0040] The material of the corner code of Example 1 is the same as the material of the solar module frame or has the same thermal expansion coefficient as the material of the solar module frame.

[0041] When installing the angle code of Example 1, first push the left vertical plate 1, the right vertical plate 2 and the first connecting plate 3 into the cavity of the short frame of the solar module. Since the thickness of the right vertical plate 2 corresponding to the low surface of the first step structure is gradually reduced in the direction from bottom to top, and the thickness of the left vertical plate 1 corresponding to the third connecting plate 5 is gradually reduced, it is more convenient and labor-saving to push the left vertical plate 1, the right vertical plate 2 and the first connecting plate 3 into the cavity of the short frame of the solar module, and then continue to push the angle code until the first protruding pin 4 enters the angle code installation hole on the short frame of the solar module. The first protruding pin 4 plays the role of positioning and locking the short frame of the solar module. The angle code installation hole is filled with an adhesive, and the first protruding pin 4 improves the pull-out resistance between the short frame of the solar module and the angle code. The adhesive can ensure that the angle code has no direct contact with the outside world. The angle code can not only achieve hidden installation, but also avoid contact with external sunlight and water vapor, and extend the life of the angle code in high-corrosion and high-ultraviolet areas.

[0042] Then push the lower horizontal plate 6, the upper horizontal plate 7 and the second connecting plate 8 into the cavity of the long frame of the solar module. Since the thickness of the upper horizontal plate 7 corresponding to the low-level surface of the second step structure is gradually reduced in the direction from left to right, the thickness of the lower horizontal plate 6 corresponding to the right side of the fourth connecting plate 10 is gradually reduced, so the lower horizontal plate 6, the upper horizontal plate 7 and the second connecting plate 8 can be conveniently and labor-savingly pushed into the cavity of the long frame of the solar module, and the corner code is pushed in until the second protruding pin 9 enters the corner code installation hole on the long frame of the solar module. The second protruding pin 9 plays the role of positioning and locking the long frame of the solar module. The corner code installation hole is filled with adhesive, and the second protruding pin 9 improves the pull-out resistance between the long frame of the solar module and the corner code. The adhesive can ensure that the corner code has no direct contact with the outside world. The corner code can not only achieve hidden installation, but also avoid contact with external sunlight and water vapor, and extend the life of the corner code in high-corrosion and high-ultraviolet areas.

[0043] A second sawtooth 2.1 is provided at the front end of the right vertical plate 2 corresponding to the upper part of the first step structure, and a fourth sawtooth 7.1 is provided at the front end of the upper horizontal plate 7 corresponding to the right side of the second step structure. This is not only convenient for distinguishing the front and back sides of the angle code, but also, after the left vertical plate 1, the right vertical plate 2 and the first connecting plate 3 are completely installed in the cavity of the short frame of the solar module, the second sawtooth 2.1 increases the friction between the angle code and the inner wall of the cavity of the short frame of the solar module, thereby enhancing the connection stability between the angle code and the short frame of the solar module; after the lower horizontal plate 6, the upper horizontal plate 7 and the second connecting plate 8 are completely installed in the cavity of the long frame of the solar module, the fourth sawtooth 7.1 increases the friction between the angle code and the inner wall of the cavity of the long frame of the solar module, thereby enhancing the connection stability between the angle code and the long frame of the solar module.

[0044] In the present invention, the reinforcing ribs 11 can effectively improve the installation stability of the short frame and the long frame of the solar module, and can also provide effective support when the corners of the short frame and the long frame of the solar module are subjected to force, thereby preventing the upper and lower glass surfaces in the solar module from being broken under force.

[0045] Due to the presence of the first pressure relief hole 12 and the second pressure relief hole 13, a buffering effect can be played when the corners of the short frame and the long frame of the solar module are subjected to force, thereby protecting the upper and lower glass corners in the short frame and the long frame of the solar module and preventing the upper and lower glass corners in the solar module from breaking.

[0046] Example 2

[0047] like Figure 4 As shown, this embodiment is based on the embodiment 1 and adds: a first sawtooth 1.1 is provided at the front end of the left vertical plate 1 above the third connecting plate 5, and a third sawtooth 6.1 is provided at the front end of the lower horizontal plate 6 on the right side of the fourth connecting plate 10. In this embodiment, the first protruding pin 4 and the second protruding pin 9 are changed into cylindrical wedges.

[0048] The total length of the first sawtooth 1.1 and the third sawtooth 6.1 is 10-55 mm.

[0049] The material of the corner code of Example 2 is the same as the material of the solar module frame or has the same thermal expansion coefficient as the material of the solar module frame.

[0050] The first sawtooth 1.1 can further increase the friction between the corner bracket and the inner wall of the short frame cavity of the solar module, thereby enhancing the connection stability between the corner bracket and the short frame of the solar module; the third sawtooth 6.1 can further increase the friction between the corner bracket and the inner wall of the long frame cavity of the solar module, thereby enhancing the connection stability between the corner bracket and the long frame of the solar module.

Claims

1. An angle code for connecting a solar panel frame, characterized by: It comprises a left vertical plate (1), a right vertical plate (2), a first connecting plate (3), a first protruding pin (4), a third connecting plate (5), a lower horizontal plate (6), an upper horizontal plate (7), a second connecting plate (8), a second protruding pin (9), a fourth connecting plate (10) and reinforcing ribs (11); The lower end of the left vertical plate (1) is fixed to the left end of the lower horizontal plate (6), the left side surface of the left vertical plate (1) is arranged perpendicularly to the lower surface of the lower horizontal plate (6), the lower end of the right vertical plate (2) is fixed to the left end of the upper horizontal plate (7), the right side surface of the right vertical plate (2) is arranged perpendicularly to the upper surface of the upper horizontal plate (7), the upper end of the right vertical plate (2) is connected to the upper end of the left vertical plate (1) through a first connecting plate (3), and the right end of the upper horizontal plate (7) is connected to the right end of the lower horizontal plate (6) through a second connecting plate (8); A first step structure is provided on the right side surface of the right vertical plate (2), the high surface of the first step structure is located below the low surface, the high surface and the low surface of the first step structure are parallel to the left side surface of the left vertical plate (1), a first protruding pin (4) is fixed on the low surface, the first protruding pin (4) is a wedge-shaped body, and the thickness of the first protruding pin (4) is gradually reduced in the direction from bottom to top; The left side surface of the right vertical plate (2) at the position corresponding to the first step structure is connected to the right side surface of the left vertical plate (1) via a third connecting plate (5), and the thickness of the third connecting plate (5) gradually decreases from both ends to the middle thereof; The upper surface of the upper horizontal plate (7) is provided with a second step structure, the high surface of the second step structure is located on the left side of the low surface, the high surface and the low surface of the second step structure are parallel to the lower surface of the lower horizontal plate (6), and a second protruding pin (9) is fixed on the low surface, the second protruding pin (9) is a wedge-shaped body, and the thickness of the second protruding pin (9) is gradually reduced in the direction from left to right; The lower surface of the upper horizontal plate (7) and the upper surface of the lower horizontal plate (6) at the position corresponding to the second step structure are connected together via a fourth connecting plate (10), and the fourth connecting plate (10) is arranged with a thickness gradually decreasing from both ends to the middle thereof; The connection portion between the left vertical plate (1) and the lower horizontal plate (6) is connected to the connection portion between the right vertical plate (2) and the upper horizontal plate (7) via a reinforcing rib (11); A second sawtooth (2.1) is provided at the front end of the right vertical plate (2) above the first step structure, and a fourth sawtooth (7.1) is provided at the front end of the upper horizontal plate (7) on the right side of the second step structure; A first pressure relief hole (12) is provided in an area enclosed by the left vertical plate (1), the reinforcing rib (11), the right vertical plate (2) and the third connecting plate (5), and the length direction of the first pressure relief hole (12) is the front-to-back direction; A second pressure relief hole (13) is provided in an area surrounded by the lower transverse plate (6), the fourth connecting plate (10), the upper transverse plate (7) and the reinforcing rib (11), and the length direction of the second pressure relief hole (13) is the front-to-back direction.

2. The angle code for connecting the solar panel frame according to claim 1, characterized in that: The first connecting plate (3) is a V-shaped plate or a U-shaped plate, and the second connecting plate (8) is a V-shaped plate or a U-shaped plate.

3. The angle code for connecting the solar panel frame according to claim 1, characterized in that: A first sawtooth (1.1) is provided at the front end of the left vertical plate (1) above the third connecting plate (5), and a third sawtooth (6.3) is provided at the front end of the lower horizontal plate (6) on the right side of the fourth connecting plate (10).

4. The angle code for connecting the solar panel frame according to claim 1, characterized in that: In the direction from bottom to top, the thickness of the left vertical plate (1) above the corresponding third connecting plate (5) is gradually reduced, and the thickness of the right vertical plate (2) corresponding to the low-level surface of the first step structure is gradually reduced.

5. The angle code for connecting the solar module frame according to claim 1, characterized in that: In the direction from left to right, the thickness of the lower horizontal plate (6) corresponding to the right side of the fourth connecting plate (10) is gradually reduced, and the thickness of the upper horizontal plate (7) corresponding to the low-level surface of the second step structure is gradually reduced.

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