Connecting piece, photovoltaic frame, fixing structure and photovoltaic module

Abstract

The utility model relates to a connecting piece, a photovoltaic frame, a fixing structure and a photovoltaic module, the connecting piece is used for fixedly connecting the photovoltaic frame and a mounting rack, the strength of the connecting piece is greater than that of the photovoltaic frame, the connecting piece comprises a first connecting part and a second connecting part, the first connecting part is provided with a first clamping part, and the second connecting part is provided with a second clamping part; the first connecting part is used for extending into a mounting opening of a photovoltaic frame, the first clamping part is clamped with a second clamping part of the photovoltaic frame, any one of the first clamping part and the second clamping part is a bulge, and the other one is a groove or a bulge; the second connecting part is connected with the first connecting part and used for being fixedly connected with a mounting frame. As the connecting piece can be independently manufactured, the strength of the connecting piece is larger than that of the photovoltaic frame, the connecting piece is not prone to deformation, the installation stability of the connecting piece and the installation frame is improved, the first clamping part is clamped with the second clamping part of the photovoltaic frame, and compared with the mode that the photovoltaic frame is connected with the connecting piece through a bolt, the connecting piece is convenient to use. And the installation convenience of an operator is improved.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaics, and particularly to a connecting piece, a photovoltaic frame, a fixing structure and a photovoltaic module. Background Art

[0002] The core component of a photovoltaic module is a solar panel (abbreviated as "photovoltaic panel"), and a photovoltaic frame is also provided on the peripheral side of the photovoltaic panel to increase the structural strength and compressive stress strength of the photovoltaic module, further seal the battery module, and extend the service life of the module.

[0003] An outer extension plate is integrally formed at the bottom of the photovoltaic frame. This outer extension plate is commonly referred to as the C-side of the photovoltaic frame in the industry. Among them, the A-side of the photovoltaic frame is the top wall of the photovoltaic frame, and the B-side of the photovoltaic frame is the outer side of the photovoltaic frame. Installation holes are provided at the C-side of the photovoltaic frame, and the photovoltaic frame can be connected to the mounting rack by passing fasteners such as bolts through the installation holes.

[0004] However, when used in coastal areas, mountainous areas, Gobi deserts and high wind load areas, due to the relatively thin thickness of the C-side of the photovoltaic frame, the connection between the C-side of the photovoltaic frame and the mounting rack is prone to tearing, resulting in poor installation stability. To improve the installation stability, the thickness of the C-side of the photovoltaic frame is increased. However, since the photovoltaic frame is integrally formed, the thickness of all the wall thicknesses of the photovoltaic frame needs to be increased together. At this time, not only will the cost of the photovoltaic frame increase, but also the weight of the photovoltaic frame will increase.

[0005] To solve the above problems, some photovoltaic frames remove the C-side of the photovoltaic frame and are additionally provided with a connecting piece. However, usually, the connecting piece and the photovoltaic frame are connected by bolts, and the possibility of tearing at the connection with the mounting rack can be reduced by separately increasing the thickness of the connecting piece. However, during installation, the connecting piece and the photovoltaic frame need to be connected by bolts, which makes it inconvenient for the operator to operate. Summary of the Utility Model

[0006] Based on this, a connecting piece, a photovoltaic frame, a fixing structure and a photovoltaic module are provided. Through the setting of the connecting piece and the photovoltaic frame, the present application can improve the connection convenience between the connecting piece and the photovoltaic frame while improving the connection stability between the connecting piece and the mounting rack.

[0007] To this end, in a first aspect, an embodiment of the present application provides a connecting member for fixedly connecting a photovoltaic frame and a mounting bracket. The strength of the connecting member is greater than that of the photovoltaic frame. The connecting member includes: a first connecting portion provided with a first engaging portion. The first connecting portion is configured to extend into an installation opening of the photovoltaic frame, and the first engaging portion engages with a second engaging portion of the photovoltaic frame. Any one of the first engaging portion and the second engaging portion is a protrusion, and the other is a groove or a protrusion; and a second connecting portion connected to the first connecting portion. The second connecting portion is configured to be fixedly connected to the mounting bracket.

[0008] In one embodiment, the first engaging portion protrudes from the surface of the first connecting portion. The first engaging portion is inclined and has a first abutting surface and a first inclined surface. The first abutting surface is located at one end of the first inclined surface facing the second connecting portion.

[0009] In one embodiment, the first connecting portion is provided with a deformation cavity, and the first engaging portion is located on a side surface of the first connecting portion corresponding to the inner wall of the photovoltaic frame.

[0010] In one embodiment, an included angle α is formed between the first connecting portion and the second connecting portion, where 0° < α < 180°.

[0011] In one embodiment, a chamfer is provided at the connection between the first connecting portion and the second connecting portion.

[0012] In one embodiment, the second connecting portion is provided with a mounting hole, and / or the second connecting portion is provided with a positioning groove.

[0013] In a second aspect, an embodiment of the present application provides a photovoltaic frame for detachably connecting with a connecting member. The strength of the connecting member is greater than that of the photovoltaic frame. The photovoltaic frame is provided with an installation opening for the connecting member to extend into. The inner wall of the photovoltaic frame is provided with a second engaging portion, and the second engaging portion engages with the first engaging portion of the connecting member. Any one of the first engaging portion and the second engaging portion is a protrusion, and the other is a groove or a protrusion.

[0014] In one embodiment, the second engaging portion protrudes from the inner surface of the photovoltaic frame. The second engaging portion is inclined and has a second abutting surface and a second inclined surface. The second abutting surface is located on a side of the second inclined surface away from the installation opening.

[0015] In a third aspect, an embodiment of the present application provides a fixing structure, including the connecting member described in any one of the above and the photovoltaic frame described in any one of the above. The strength of the connecting member is greater than that of the photovoltaic frame. The first engaging portion of the connecting member engages with the second engaging portion of the photovoltaic frame, and either one of the first engaging portion and the second engaging portion is a protrusion, and the other is a groove or a protrusion.

[0016] In a fourth aspect, an embodiment of the present application provides a photovoltaic module, including a photovoltaic panel and the fixing structure described in any one of the above.

[0017] According to the connecting member, photovoltaic frame, fixing structure and photovoltaic module provided by the embodiments of the present application, the connecting member is used to fixedly connect the photovoltaic frame and the mounting rack. The strength of the connecting member is greater than that of the photovoltaic frame. The connecting member includes a first connecting portion and a second connecting portion. The first connecting portion is provided with a first engaging portion. The first connecting portion is used to extend into the mounting opening of the photovoltaic frame. The first engaging portion engages with the second engaging portion of the photovoltaic frame. Either one of the first engaging portion and the second engaging portion is a protrusion, and the other is a groove or a protrusion. The second connecting portion is connected to the first connecting portion, and the second connecting portion is used to be fixedly connected to the mounting rack. Since the connecting member can be manufactured separately, the strength of the connecting member is greater than that of the photovoltaic frame, so that the connecting member is not easily deformed, improving the stability of the installation of the connecting member and the mounting rack. Even when used in coastal areas, mountainous areas, gobi deserts and high wind load areas, the installation position of the connecting member and the mounting rack is not easily torn. The first engaging portion engages with the second engaging portion of the photovoltaic frame. Compared with connecting the photovoltaic frame and the connecting member by bolts, the installation of the present application is more convenient, improving the installation convenience of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram showing a fixing structure provided by an embodiment of the present application;

[0019] Figure 2 A schematic diagram showing the structure of a photovoltaic frame and a connecting member provided by an embodiment of the present application;

[0020] Figure 3 A left view showing a connecting member provided by an embodiment of the present application;

[0021] Figure 4 A left view showing a photovoltaic frame provided by an embodiment of the present application;

[0022] Figure 5 A left view showing a photovoltaic frame and a connecting member provided by an embodiment of the present application;

[0023] Figure 6 A partial bottom view showing a photovoltaic frame provided by an embodiment of the present application;

[0024] Figure 7 Schematic diagram showing a partial structure of a photovoltaic frame provided by an embodiment of the present application;

[0025] Figure 8 Schematic diagram showing the structures of a photovoltaic frame, a connecting member, and a locking member provided by the present application.

[0026] Description of reference numerals:

[0027] 1. Photovoltaic frame; 11. Second engaging portion; 111. Second abutting surface; 112. Second inclined surface; 12. Mounting opening; 2. Connecting member; 21. First connecting portion; 211. First engaging portion; 2111. First abutting surface; 2112. First inclined surface; 22. Second connecting portion; 23. Deformation cavity; 24. Mounting hole; 25. Positioning groove; 3. Locking member. Detailed implementation manners

[0028] In order to make the objectives, technical solutions, and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] It should be noted that the illustrations provided in this embodiment only schematically illustrate the basic concept of the present invention. Therefore, only the components related to the present invention are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The types, numbers, and proportions of the components in actual implementation may be arbitrarily changed, and the layout type of the components may also be more complex.

[0030] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the objectives that can be achieved, should still fall within the scope that can be covered by the technical content disclosed by the present invention.

[0031] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "middle", "longitudinal", "transverse", "horizontal", "inner", "outer", "radial", "circumferential", etc. cited in this specification is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] When a photovoltaic module is used in coastal areas, mountainous areas, gobi deserts, and areas with high wind loads, the connection between the C side of the photovoltaic frame and the mounting rack is prone to tearing, resulting in poor installation stability. To improve the installation stability, the thickness of the C side of the photovoltaic frame is increased. However, since the photovoltaic frame is integrally formed, the thickness of the entire photovoltaic frame needs to be increased accordingly. This not only increases the cost of the photovoltaic frame but also increases its weight. Therefore, in some photovoltaic frames, the C side of the photovoltaic frame is removed, and a connecting piece is additionally provided. The connecting piece is connected to the photovoltaic frame by bolts, and the possibility of tearing at the connection with the mounting rack can be reduced by separately increasing the thickness of the connecting piece. However, during installation, it is necessary to connect the connecting piece and the photovoltaic frame with bolts, which makes it inconvenient for the operator.

[0033] To solve the above problems, refer to Figures 1-6 , Figure 1 which shows a schematic diagram of a fixing structure provided by an embodiment of the present application, Figure 2 which shows a schematic diagram of the structure of a photovoltaic frame and a connecting piece provided by an embodiment of the present application, Figure 3 which shows a left view of a connecting piece provided by an embodiment of the present application, Figure 4 which shows a left view of a photovoltaic frame provided by an embodiment of the present application, Figure 5 which shows a left view of a photovoltaic frame and a connecting piece provided by an embodiment of the present application, Figure 6 which shows a partial bottom view of a photovoltaic frame provided by an embodiment of the present application.

[0034] The present application provides a connecting piece 2, which is used to fixedly connect a photovoltaic frame 1 and a mounting rack. The strength of the connecting piece 2 is greater than that of the photovoltaic frame 1. The connecting piece 2 includes a first connecting portion 21 and a second connecting portion 22. The first connecting portion 21 is provided with a first engaging portion 211. The first connecting portion 21 is used to extend into the mounting opening 12 of the photovoltaic frame 1, and the first engaging portion 211 engages with the second engaging portion 11 of the photovoltaic frame. Either the first engaging portion 211 or the second engaging portion 11 is a protrusion, and the other is a groove or a protrusion. The second connecting portion 22 is connected to the first connecting portion 21, and the second connecting portion 22 is used to be fixedly connected to the mounting rack.

[0035] It should be understood that the material of the connecting member 2 can be a metal material, such as high-strength aluminum alloy or alloy steel or a composite component, and the present application does not limit it. The connecting member 2 includes a first connecting portion 21 and a second connecting portion 22. The materials of the first connecting portion 21 and the second connecting portion 22 are the same, and the first connecting portion 21 and the second connecting portion 22 are integrally formed. The first engaging portion 211 at the first connecting portion 21 of the connecting member 2 is engaged with the second engaging portion 11 of the photovoltaic frame 1. That is, the connecting member 2 can be manufactured separately. During manufacturing, the material of the connecting member 2 can be changed so that the strength of the connecting member 2 is greater than that of the photovoltaic frame 1, or the thickness of the connecting member 2 can be made greater than the wall thickness of the photovoltaic frame 1, so that the strength of the connecting member 2 is greater than that of the photovoltaic frame 1. The second connecting portion 22 of the connecting member 2 is detachably connected to the mounting bracket, and can be fixedly connected by bolts or the like or connected by a locking member, and the present application does not limit it. Since the strength of the connecting member 2 is greater than that of the photovoltaic frame 1, the stability of the installation of the second connecting portion 22 of the connecting member 2 and the mounting bracket is improved. Even when used in coastal areas, mountainous areas, gobi deserts and high wind load areas, the installation position of the connecting member 2 and the mounting bracket is not easily torn.

[0036] When increasing the thickness of the connecting member 2 or changing the material of the connecting member 2, the thickness and material of the photovoltaic frame 1 can not be changed, so the material cost increase of the photovoltaic frame 1 is reduced. At the same time, when the C side of the photovoltaic frame is integrally formed with the photovoltaic frame 1, the length of the C side of the photovoltaic frame is the same as the length of the photovoltaic frame 1, and the connecting member 2 of the present application only needs to be provided at the installation position of the photovoltaic frame 1 and the mounting bracket. The connecting member 2 does not need to extend along the length direction of the photovoltaic frame 1, thereby reducing the weight of the fixing structure and also reducing the material of the fixing structure, reducing the cost. At the same time, during transportation, the connecting member 2 and the photovoltaic frame 1 can be placed separately, and there is no need to additionally set the position of the C side of the photovoltaic frame, reducing the transportation space, thereby facilitating transportation. During the installation process, since the weight of the fixing structure is reduced, it is also convenient for the operator to carry or fix, improving the installation convenience of the operator.

[0037] Refer to Figures 3-5 , the first engaging portion 211 is located on the outer side wall of the first connecting portion 21, the second engaging portion 11 is located on the inner wall of the photovoltaic frame 1, and either the first engaging portion 211 or the second engaging portion 11 is a protrusion, and the other is a groove or a protrusion. When the first engaging portion 211 is engaged with the second engaging portion 11, the first connecting portion 21 is connected to the photovoltaic frame 1.

[0038] In one example, both the first engaging portion 211 and the second engaging portion 11 are protrusions. The present application does not limit the shape of the protrusions. The protrusions can be tooth-shaped, hook-shaped, spherical or cuboid-shaped. The first engaging portion 211 abuts and engages with the second engaging portion 11, and the connecting member 2 is connected to the photovoltaic frame 1.

[0039] In one example, the first engaging portion 211 is a protrusion, and the second engaging portion 11 is a groove, wherein the groove can be formed by a depression of the inner wall of the photovoltaic frame 1 itself, or can be formed by a protrusion and the inner wall of the photovoltaic frame 1, or can be formed by a gap between two protrusions. When the first engaging portion 211 is engaged with the second engaging portion 11, the connector 2 is connected to the photovoltaic frame 1.

[0040] In one example, the first engaging portion 211 is a groove, which can be formed by a depression of the inner wall of the connector 2 itself, or by a protrusion and the inner wall of the connector 2, or by a gap between two protrusions. The second engaging portion 11 is a protrusion. When the first engaging portion 211 is engaged with the second engaging portion 11, the connector 2 is connected to the photovoltaic frame 1.

[0041] Among them, multiple first snap-fitting parts 211 can be provided and arranged at intervals along the length direction of the first connecting part 21, and multiple second snap-fitting parts 11 can also be provided and correspond to multiple first snap-fitting parts 211, thereby improving the stability of the connection between the connector 2 of the present application and the photovoltaic frame 1.

[0042] Furthermore, the multiple first snap-fitting portions 211 can be divided into two groups. The two groups of first snap-fitting portions 211 can be arranged on the two side walls opposite to each other of the first connecting portion 21. The second snap-fitting portions 11 are correspondingly provided with two and are located on the two opposite inner walls of the photovoltaic frame 1, thereby further improving the stability of the snap-fitting between the first snap-fitting portions 211 and the second snap-fitting portions 11, and improving the stability of the connection between the connecting member 2 and the photovoltaic frame 1.

[0043] The present application is more convenient to install than connecting the photovoltaic frame 1 and the connector 2 by bolts, and the convenience of installation for the operator is improved. In addition, the present application sets the connection between the photovoltaic frame 1 and the connector 2 in the inner cavity of the photovoltaic frame 1, which is not easily affected by the outside world, further improving the stability of the connection between the photovoltaic frame 1 and the connector 2 of the present application, and also improving the aesthetics of the fixed structure.

[0044] The present application does not limit the shape of the connector 2. The connector 2 can be block-shaped or bent, and can be selected according to different connection positions or connection methods. In one example, the first connection portion 21 extends along the length direction of the second connection portion 22. In one example, the connector 2 is bent, and the first connection portion 21 and the second connection portion 22 are arranged at an angle, and the angle is greater than 0° and less than 180°.

[0045] In some alternative embodiments, the first engaging portion 211 protrudes from the surface of the first connecting portion 21. The first engaging portion 211 is inclined and has a first abutting surface 2111 and a first inclined surface 2112. The first abutting surface 2111 is located at one end of the first inclined surface 2112 facing the second connecting portion 22. The first engaging portion 211 is provided in a toothed shape and has a first abutting surface 2111 and a first inclined surface 2112. The first abutting surface 2111 is a plane and is connected to the first inclined surface 2112. When one end of the connecting member 2 is located in the inner cavity of the photovoltaic frame 1, the first abutting surface 2111 is located on the side of the first inclined surface 2112 facing the mounting opening 12, which further facilitates the first engaging portion 211 to extend into the mounting opening 12 and engage with the second engaging portion 11. Moreover, the arrangement of the present application also makes it difficult for the first engaging portion 211 and the second engaging portion 11 to fall off, further improving the stability of the engagement between the first engaging portion 211 and the second engaging portion 11, and enhancing the connection stability between the photovoltaic frame 1 and the connecting member 2.

[0046] In some alternative embodiments, a deformation cavity 23 is provided in the first connecting portion 21. The first engaging portion 211 is located on the side surface of the first connecting portion 21 corresponding to the inner wall of the photovoltaic frame 1. The deformation cavity 23 is located at the first connecting portion 21 and is open. The provision of the deformation cavity 23 enables the width of the first connecting portion 21 to be changed. The first engaging portion 211 is located on the outer surface of the first connecting portion 21. During installation, pressure is applied to the connecting member 2, causing the deformation cavity 23 to deform and its width to narrow. The width of the first connecting portion 21 narrows, facilitating the first connecting portion 21 to extend into the mounting opening 12. After the first connecting portion 21 extends into the mounting opening 12, the deformation cavity 23 returns to its original position and its width is restored, making the first engaging portion 211 located outside the first connecting portion 21 engage more tightly with the second engaging portion 11. The provision of the deformation cavity 23 not only improves the convenience of the first connecting portion 21 extending into the mounting opening 12, but also enhances the connection stability between the second engaging portion 11 and the first engaging portion 211.

[0047] In some alternative embodiments, an included angle α is formed between the first connecting portion 21 and the second connecting portion 22, where 0° < included angle α < 180°. The present application does not limit the angle of the included angle α. However, when the angle of the included angle α is 90°, the first connecting portion 21 is arranged parallel to the side wall of the photovoltaic frame 1, and the second connecting portion 22 is arranged parallel to the bottom wall of the photovoltaic frame 1. After the first connecting portion 21 extends into the inner cavity of the photovoltaic frame 1, the second connecting portion 22 is flush with the bottom wall of the photovoltaic frame 1, thereby facilitating the second connecting portion 22 and the bottom wall of the photovoltaic frame 1 to be simultaneously attached to the mounting bracket, reducing the connection gap between the fixing structure and the mounting bracket, and thus enhancing the connection stability between the fixing structure and the mounting bracket.

[0048] In some alternative embodiments, the joint between the first connecting portion 21 and the second connecting portion 22 is chamfered, which can improve the tear resistance of the connecting member 2, reduce the probability of cracking between the first connecting portion 21 and the second connecting portion 22, and improve the stability of the connecting member 2.

[0049] Referring to Figures 1-5 and Figure 8 , Figure 8 FIG. shows a schematic structural diagram of a photovoltaic frame, a connecting member and a locking member provided by the present application. In some alternative embodiments, the second connecting portion 22 is provided with a mounting hole 24. The mounting hole 24 can be a through hole, and a fixing member such as a bolt passes through the mounting hole 24 to connect with the mounting bracket. A plurality of mounting holes 24 can also be provided to facilitate connecting the second connecting portion 22 with the mounting bracket by a plurality of fixing members. If a locking member 3 is provided, the locking member 3 includes a U-shaped tube and a pressing plate. The U-shaped tube can also pass through the mounting hole 24 to sleeve the mounting bracket and connect with the pressing plate, thereby connecting the second connecting portion 22 with the mounting bracket.

[0050] In some alternative embodiments, the mounting hole 24 is a threaded hole. When the fixing member is a bolt, the fixing member can be threadedly connected with the mounting hole 24, further improving the stability of the connection between the second connecting portion 22 and the locking member 3.

[0051] In some alternative embodiments, the second connecting portion 22 is provided with a positioning groove 25 for engaging with the locking member 3. When installing the locking member 3, the U-shaped tube of the locking member 3 can be engaged with the positioning groove 25 to prevent the locking member 3 from moving along the length direction of the second connecting portion 22, which can improve the stability of the connection between the locking member 3 and the second connecting portion 22.

[0052] Both the mounting hole 24 and the positioning groove 25 can be provided simultaneously, so that the fixing member and the locking member 3 lock the second connecting portion 22 with the mounting bracket at the same time, further improving the stability of the connection between the connecting member 2 and the mounting bracket.

[0053] Referring to Figures 1-7 , Figure 7 FIG. shows a partial structural schematic diagram of a photovoltaic frame provided by an embodiment of the present application. The present application further includes a photovoltaic frame 1 for detachably connecting with the connecting member 2. The strength of the connecting member 2 is greater than that of the photovoltaic frame 1. The photovoltaic frame 1 is provided with a mounting opening 12 for the connecting member 2 to extend into. A second engaging portion 11 is provided in the inner cavity of the photovoltaic frame 1, and the second engaging portion 11 engages with the first engaging portion 211 of the connecting member 2. Either the first engaging portion 211 or the second engaging portion 11 is a protrusion, and the other is a groove or a protrusion.

[0054] The photovoltaic frame 1 includes a top wall, a bottom wall, and two side walls. The top wall, the bottom wall, and the two side walls enclose to form the inner cavity of the photovoltaic frame 1. Compared with the solid setting of the photovoltaic frame 1, it reduces the weight of the photovoltaic frame 1 and saves the material for manufacturing the photovoltaic frame 1 at the same time. The top wall, the bottom wall, and the two side walls are made of the same material, which is a metal material, such as aluminum alloy or composite material. Therefore, the top wall, the bottom wall, and the two side walls are integrally formed. Since the photovoltaic frame 1 is integrally formed, the wall thickness of the photovoltaic frame 1 is equal. An installation part is also integrally formed on the top wall of the photovoltaic frame 1. The installation part and the top wall form an installation space for installing the photovoltaic panel. Among them, multiple photovoltaic frames 1 are connected end to end to form a fixing structure for the photovoltaic panel. The number of photovoltaic frames 1 in this application is not limited, and it is specifically set according to the shape of the photovoltaic panel. When the photovoltaic panel is a rectangular structure, the number of photovoltaic frames 1 can be four. Adjacent two photovoltaic frames 1 can be connected by corner codes, so as to wrap and fix the periphery of the photovoltaic panel, so as to facilitate the installation of the photovoltaic panel.

[0055] The strength of the connecting piece 2 is greater than that of the photovoltaic frame 1. The thickness of the connecting piece 2 can be made greater than that of the photovoltaic frame 1, or the material strength of the connecting piece 2 can be made greater than that of the photovoltaic frame 1, so as to improve the stability of the second connecting part 22 of the connecting piece 2 installed with the mounting rack. Even when used in coastal areas, mountainous areas, Gobi deserts and high wind load areas, the installation position of the connecting piece 2 and the mounting rack is not easily torn.

[0056] The second engaging part 11 can be a protrusion or a groove, which will not be elaborated here. The second engaging part 11 engages with the first engaging part 211.

[0057] The photovoltaic frame 1 is provided with an installation opening 12 for the connecting piece 2 to extend into. The installation opening 12 can be located on the side wall of the photovoltaic frame 1. At this time, the included angle between the first connecting part 21 and the second connecting part 22 is set at 180°. The second engaging part 11 is located on the top wall and / or the bottom wall of the photovoltaic frame 1. Multiple second engaging parts 11 are arranged at intervals along the width direction of the photovoltaic frame 1, so as to facilitate the block-shaped connecting piece 2 to extend into the installation opening 12 and make the first engaging part 211 engage with the second engaging part 11.

[0058] The installation opening 12 of the photovoltaic frame 1 can be located on the bottom wall of the photovoltaic frame 1. The second engaging part 11 is located on the side wall of the photovoltaic frame 1. Multiple second engaging parts 11 are arranged at intervals along the height direction of the photovoltaic frame 1. The first connecting part 21 and the second connecting part 22 are bent. At this time, the included angle between the first connecting part 21 and the second connecting part 22 is set at 90°. The first connecting part 21 is parallel to the side wall of the photovoltaic frame 1 and the second connecting part 22 is parallel to the bottom wall of the photovoltaic frame 1.

[0059] Among them, the installation opening 12 is located at one end of the bottom wall of the photovoltaic frame 1 near the inner side of the fixing structure and on the side wall of the photovoltaic frame 1 facing the inner cavity of the fixing structure, which facilitates the first connecting portion 21 to extend into the inner cavity of the photovoltaic frame 1 and improves the aesthetics of the fixing structure at the same time.

[0060] In some alternative embodiments, the second engaging portion 11 protrudes from the inner surface of the photovoltaic frame 1. The second engaging portion 11 is inclined and has a second abutting surface 111 and a second inclined surface 112. The second abutting surface 111 is located on the side of the second inclined surface 112 away from the installation opening 12. The second engaging portion 11 is arranged in a toothed shape and is inclined, which makes it more convenient for the first connecting portion 21 to extend into the installation opening 12 and engage with the second engaging portion 11. When the first engaging portion 211 engages with the second engaging portion 11, the second abutting surface 111 abuts against the first abutting surface 2111, and the second inclined surface 112 abuts against the first inclined surface 2112. The setting of the present application also makes it difficult for the first engaging portion 211 to disengage from the second engaging portion 11, further improving the stability of the engagement between the first engaging portion 211 and the second engaging portion 11, and improving the stability of the connection between the photovoltaic frame 1 and the connecting member 2.

[0061] Referring to Figures 1-7 , the present application further includes a fixing structure. The fixing structure includes the connecting member 2 described in any one of the above and the photovoltaic frame 1 described in any one of the above. The strength of the connecting member 2 is greater than that of the photovoltaic frame 1. The first engaging portion 211 of the connecting member 2 engages with the second engaging portion 11 of the photovoltaic frame 1. Either the first engaging portion 211 or the second engaging portion 11 is a protrusion, and the other is a groove or a protrusion. A plurality of photovoltaic frames 1 are connected end to end to form a fixing structure of the photovoltaic panel, so as to wrap and fix the periphery of the photovoltaic panel, facilitating the installation of the photovoltaic panel at the photovoltaic frame 1. The photovoltaic frame 1 is provided with an installation opening 12 for the first connecting portion 21 to extend into. The first connecting portion 21 extends into the installation opening 12, so that the first engaging portion 211 engages with the second engaging portion 11, and further enables the connecting member 2 to be connected to the photovoltaic frame 1.

[0062] The strength of the connecting member 2 is greater than that of the photovoltaic frame 1, thereby improving the stability of the installation of the second connecting portion 22 of the connecting member 2 and the mounting rack. Even when used in coastal areas, mountainous areas, gobi deserts and high wind load areas, the installation position of the connecting member 2 and the mounting rack is not easily torn.

[0063] The connecting member 2 and the photovoltaic frame 1 are connected through the first engaging portion 211 and the second engaging portion 11. Compared with connecting the photovoltaic frame 1 and the connecting member 2 by bolts, the installation of the present application is more convenient, improving the convenience of installation for the operator.

[0064] This application also includes a photovoltaic module, which includes a photovoltaic panel and the fixing structure described in any one of the above. During installation, first connect the photovoltaic panel to the photovoltaic frame 1 and the connecting member 2 in the fixing structure, and finally connect the connecting member 2 in the fixing structure to the mounting bracket through the fixing member and / or the locking member.

[0065] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0066] The above-described embodiments only represent several implementation manners of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of this application, several modifications and improvements can still be made, and these all belong to the protection scope of this application. Therefore, the protection scope of this application patent shall be subject to the appended claims.

Claims

1. A connecting piece for fixedly connecting a photovoltaic frame (1) and a mounting bracket, the strength of the connecting piece (2) being greater than the strength of the photovoltaic frame (1), characterized in that, The connecting member (2) comprises: A first connecting portion (21) is provided with a first engaging portion (211), the first connecting portion (21) is used to extend into the mounting opening (12) of the photovoltaic frame (1), the first engaging portion (211) is engaged with the second engaging portion (11) of the photovoltaic frame (1), either the first engaging portion (211) or the second engaging portion (11) is a protrusion, and the other is a groove or a protrusion; and The second connecting portion (22) is connected to the first connecting portion (21), and the second connecting portion (22) is used for being fixedly connected to the mounting frame.

2. The connector according to claim 1, wherein The first engaging portion (211) protrudes from the surface of the first connecting portion (21); the first engaging portion (211) is arranged at an angle and has a first abutting surface (2111) and a first inclined surface (2112); the first abutting surface (2111) is located at one end of the first inclined surface (2112) facing the second connecting portion (22).

3. The connecting member according to claim 1, characterized in that The first connecting portion (21) is provided with a deformation cavity (23), and the first engaging portion (211) is located on a side surface of the first connecting portion (21) corresponding to an inner wall of the photovoltaic frame (1).

4. The connecting member according to claim 1, characterized in that, The first connecting portion (21) and the second connecting portion (22) are formed with an included angle α, 0°<the included angle α<180°.

5. The connector according to claim 4, characterized in that, The connection between the first connection portion (21) and the second connection portion (22) is chamfered.

6. The connecting member according to claim 1, wherein The second connecting portion (22) is provided with a mounting hole (24), and / or the second connecting portion (22) is provided with a positioning groove (25).

7. A photovoltaic frame for detachably connecting with a connecting member (2), the strength of the connecting member (2) being greater than the strength of the photovoltaic frame (1), characterized in that, The photovoltaic frame (1) is provided with an installation opening (12) for the connecting member (2) to extend into, and the inner wall of the photovoltaic frame (1) is provided with a second engaging portion, the second engaging portion (11) is engaged with the first engaging portion (211) of the connecting member (2), and either the first engaging portion (211) or the second engaging portion (11) is a protrusion, and the other is a groove or a protrusion.

8. The photovoltaic frame according to claim 7, characterized in that, The second engaging portion (11) protrudes from the inner surface of the photovoltaic frame (1); the second engaging portion (11) is arranged at an angle and has a second abutting surface (111) and a second inclined surface (112); the second abutting surface (111) is located on a side of the second inclined surface (112) facing away from the mounting opening (12).

9. A fixing structure, characterized in that, The invention comprises a connector (2) as described in any one of claims 1 to 6 and a photovoltaic frame (1) as described in any one of claims 7 to 8, wherein the strength of the connector (2) is greater than the strength of the photovoltaic frame (1), and a first engaging portion (211) of the connector (2) engages with a second engaging portion (11) of the photovoltaic frame, and either the first engaging portion (211) or the second engaging portion (11) is a protrusion, and the other is a groove or a protrusion.

10. A photovoltaic module, characterized in that, It comprises a photovoltaic panel and the fixing structure described in claim 9.

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