Photovoltaic module frame

Abstract

The utility model discloses a photovoltaic module frame, which comprises two first frame assemblies and two second frame assemblies, each first frame assembly comprises a first frame with an assembly cavity, each second frame assembly comprises a second frame with an assembly cavity, and the first frame assemblies and the second frame assemblies are arranged in parallel. Each second frame assembly further comprises corner connectors installed at the two ends of the second frame assembly, each corner connector comprises a first connecting arm and a second connecting arm, the first connecting arm and the second connecting arm are fixed, a 90-degree included angle is formed between the first connecting arm and the second connecting arm, the first connecting arm is inserted into the assembling cavity of the second frame, and the second connecting arm is inserted into the assembling cavity of the second frame. The first connecting arm is fixed with the second frame; when the first frame assembly is connected with the second frame assembly, the second connecting arm is inserted into the assembling cavity of the first frame, and the second connecting arm is fixed to the first frame. According to the utility model, the assembly efficiency on the construction site can be improved.

Description

Technical Field

[0001] This utility model relates to photovoltaic modules, specifically to a photovoltaic module frame. Background Technology

[0002] A photovoltaic (PV) module (also known as a solar cell module) is a power generation unit consisting of multiple sealed solar cells. It is used to convert sunlight into electrical energy and protect the cells from environmental impacts. To install a PV module, it is typically fixed to a frame, with the frame arranged circumferentially around the module.

[0003] A photovoltaic module frame typically consists of a frame body and corner brackets. There are multiple frame bodies, which, when fixed together with the corner brackets, form a rectangular frame. The photovoltaic module is located within the rectangular frame and fixed to the frame body.

[0004] In existing corner brackets, glue is applied to the surface of the corner bracket before it is inserted into the cavity of the frame body. During this process, the corner bracket deforms under the pressure of the frame body. After it is inserted into the cavity, the corner bracket and the frame body form an interference fit through the elastic recovery force. The above structure has the following defects:

[0005] First, the corner brackets and the frame are completely separated before assembly on the construction site. In addition, the corner brackets are coated with glue, and the whole assembly process takes a long time, which leads to the extension of the construction period.

[0006] Secondly, since the corner gap between the corner bracket and the frame body is very small, when the corner bracket with glue on its surface is inserted into the cavity on the frame body, the pressure force causes the glue to be squeezed out, resulting in glue being squeezed out of the frame body. This not only wastes glue, but also leaves glue residue at the end of the frame body and the corner bracket, affecting the fit between the corner bracket and the frame body. Utility Model Content

[0007] This invention provides a frame for photovoltaic modules, which can improve assembly efficiency on construction sites.

[0008] A photovoltaic module frame includes a first frame assembly and a second frame assembly. There are two first frame assemblies and two second frame assemblies. Each first frame assembly includes a first frame with an assembly cavity. Each second frame assembly includes a second frame with an assembly cavity. Each second frame assembly also includes corner brackets installed at both ends of the second frame assembly. Each corner bracket includes a first connecting arm and a second connecting arm. The first connecting arm and the second connecting arm are fixed together and form a 90° angle. The first connecting arm is inserted into the assembly cavity of the second frame and is fixed to the second frame.

[0009] When the first frame assembly is connected to the second frame assembly, the second connecting arm is inserted into the assembly cavity of the first frame, and the second connecting arm is fixed to the first frame.

[0010] In this invention, since the first connecting arm of the corner bracket is fixed to the second frame before leaving the factory, when installing it at the construction site, it is only necessary to insert the second connecting arm into the assembly cavity of the first frame to fix the second connecting arm to the first frame, thus completing the installation of the frame and improving the installation efficiency. Attached Figure Description

[0011] Figure 1 This is a structural diagram of the frame of a photovoltaic module.

[0012] Figure 2 This is a 3D view of the first border component.

[0013] Figure 3 This is a 3D view of the second border component.

[0014] Figure 4 This is a three-dimensional diagram of the first type of corner code.

[0015] Figure 5 This is an assembly diagram of the first type of corner bracket and the first nested bracket.

[0016] Figure 6 This is a 3D diagram of the second type of corner code.

[0017] Figure 7 This is an assembly diagram of the second type of corner bracket with the first and second nested brackets.

[0018] Labels in the attached diagram:

[0019] First frame assembly A, second frame assembly B, first frame 1, first glue injection hole 1a, second frame 2, second glue injection hole 2a, corner bracket 3, first connecting arm 3a, glue storage tank 3a0, first connecting arm body 3a1, first elastic component 3a2, first limiting component 3a3, first gap space 3a4, second connecting arm 3b, second connecting arm body 3b1, second elastic component 3b2, second limiting component 3b3, second gap space 3b4, first nest 4, first glue storage tank 4a, second nest 5, second glue storage tank 5a. Detailed Implementation

[0020] Example 1

[0021] like Figures 1 to 5As shown, the photovoltaic module frame of this utility model includes a first frame assembly A and a second frame assembly B. There are two first frame assemblies A and two second frame assemblies B. Each first frame assembly A includes a first frame 1 with an assembly cavity, and each second frame assembly B includes a second frame 2 with an assembly cavity. Each second frame assembly B also includes corner brackets 3 installed at both ends of the second frame assembly B. Each corner bracket 3 includes a first connecting arm 3a and a second connecting arm 3b. The first connecting arm 3a and the second connecting arm 3b are fixed together. A 90° angle is formed between the first connecting arm 3a and the second frame 2. The first connecting arm 3a is inserted into the assembly cavity of the second frame 2 and fixed to the second frame 2. In this embodiment, the second frame 2 is provided with a second glue injection hole 2a. After the first connecting arm 3a is inserted into the assembly cavity of the second frame 2, glue is injected into the second frame 2 through the second glue injection hole 2a. The first connecting arm 3a is provided with a glue storage tank 3a0. The glue flows into the glue storage tank 3a0 and the glue bonds the inner wall surface of the second frame 2 and the first connecting arm 3a, thereby directly bonding and fixing the first connecting arm 3a to the second frame 2.

[0022] When the first frame assembly A is connected to the second frame assembly B, the second connecting arm 3b is inserted into the assembly cavity of the first frame 1, and the second connecting arm 3b is fixed to the first frame 1. In this utility model, since the first connecting arm 3a of the corner bracket 3 is fixed to the second frame 2 before leaving the factory, during installation at the construction site, it is only necessary to insert the second connecting arm 3b into the assembly cavity of the first frame 1 to fix the second connecting arm 3b to the first frame 1, thus completing the frame installation and improving installation efficiency.

[0023] The first frame assembly A also includes a first nest 4. The first frame 1 is provided with a first glue injection hole 1a. The first nest 4 is located in the assembly cavity on the first frame 1. Glue is injected into the first frame 1 through the first glue injection hole 1a so that the first nest 4 is bonded and fixed to the first frame 1. The second connecting arm 3b passes through the first nest 4 and is fixed to the first nest 4.

[0024] The first nest 4 has a cuboid structure. After the first nest 4 is fitted with the assembly cavity on the first frame 1 with a clearance or interference fit, glue is injected into the interior of the first frame 1 through the first glue injection hole 1a, and the first nest 4 is bonded and fixed to the first frame 1 by the glue. This structure avoids applying glue to the surface of the first nest 4 beforehand. Therefore, when the first nest 4 enters the interior of the first frame 1, the glue is prevented from being squeezed out of the first frame 1 by the first frame 1, which is both environmentally friendly and convenient. Furthermore, the first nest 4 can be fixed to the first frame 1 by glue injection before leaving the factory. When installed on the construction site, the second connecting arm 3b only needs to pass through the first nest 4 to connect the second connecting arm 3b to the first nest 4.

[0025] The second connecting arm 3b includes a second connecting arm body 3b1, a second elastic component 3b2, and a second limiting component 3b3. There are multiple second elastic components 3b2. After one end of each second elastic component 3b2 is fixed to one end of the second connecting arm body 3b1, a second gap space 3b4 is formed between these second elastic components 3b2. The surface of the other end of each second elastic component 3b2 is fixed with a second limiting component 3b3. The second limiting component 3b3 is conical. After the second connecting arm 3b passes through the first nest 4, the end face of the second limiting component 3b3 engages with the first nest 4.

[0026] In this embodiment, there are two second elastic members 3b2, and the second limiting member 3b3 protrudes from the surface of the second elastic member 3b2. Therefore, when the second connecting arm 3b passes through the first nest 4, the second limiting member 3b3 is squeezed by the first nest 4, causing the second elastic member 3b2 to undergo elastic deformation. After the second limiting member 3b3 has passed through the first nest 4, the second limiting member 3b3 is no longer subjected to the squeezing force of the first nest 4, the second elastic member 3b2 returns to its original position, and the end face of the second limiting member 3b3 abuts against the end face of the first nest 4, so that the second connecting arm 3b cannot exit the first nest 4.

[0027] The first nest 4 is provided with a first glue storage groove 4a corresponding to the first glue injection hole 1a, and the first glue storage groove 4a is arranged along the circumference of the first nest 4. When glue is injected into the interior of the first frame 1 through the first glue injection hole 1a, the glue flows into the first glue storage groove 4a due to its presence. Since a glue storage space is formed between the first glue storage groove 4a and the inner wall of the first frame 1, the glue cures in the glue storage space, thus bonding and fixing the first nest 4 to the first frame 1.

[0028] Example 2

[0029] The difference between this embodiment and embodiment 1 lies in the fixing of the first connecting arm 3a and the second frame 2, specifically as follows: Figure 3 , Figure 6 and Figure 7 The second frame assembly B also includes a second nest 5. The second frame 2 is provided with a second glue injection hole 2a. The second nest 5 is located in the assembly cavity on the second frame 2. Glue is injected into the second frame 2 through the second glue injection hole 2a so that the second nest 5 is bonded and fixed to the second frame 2. The first connecting arm 3a passes through the second nest 5 and is fixed to the second nest 5.

[0030] The second nest 5 has a cuboid structure. After the second nest 5 is fitted with the assembly cavity on the second frame 2 with a clearance or interference fit, glue is injected into the interior of the second frame 2 through the second glue injection hole 2a, and the second nest 5 is bonded and fixed to the second frame 2 by the glue. This structure avoids applying glue to the surface of the second nest 5 first. Therefore, when the second nest 5 enters the interior of the second frame 2, the glue is prevented from being squeezed out of the second frame 2 by the second nest 5, which is both environmentally friendly and convenient.

[0031] The first connecting arm 3a includes a first connecting arm body 3a1, a first elastic component 3a2, and a first limiting component 3a3. There are multiple first elastic components 3a2. After one end of each first elastic component 3a2 is fixed to one end of the first connecting arm body 3a1, a first gap space 3a4 is formed between these first elastic components 3a2. The surface of the other end of each first elastic component 3a2 is fixed with a first limiting component 3a3. The first limiting component 3a3 is conical. After the first connecting arm 3a passes through the second nest 5, the end face of the first limiting component 3a3 cooperates with the second nest 5.

[0032] In this embodiment, there are two first elastic members 3a2, and the first limiting member 3a3 protrudes from the surface of the first elastic member 3a2. Therefore, when the first connecting arm 3a passes through the second nest 5, the first limiting member 3a3 is squeezed by the second nest 5, causing the first elastic member 3a2 to undergo elastic deformation. After the first limiting member 3a3 has passed through the second nest 5, the first limiting member 3a3 is no longer subjected to the squeezing force of the second nest 5, the first elastic member 3a2 returns to its original position, and the end face of the first limiting member 3a3 abuts against the end face of the second nest 5, so that the first connecting arm 3a cannot exit the second nest 5.

[0033] The second nest 5 is provided with a second glue reservoir 5a corresponding to the second glue injection hole 2a, and the second glue reservoir 5a is arranged along the circumference of the second nest 5. When glue is injected into the interior of the second frame 1 through the second glue injection hole 2a, the glue flows into the second glue reservoir 5a due to its presence. Since a glue storage space is formed between the second glue reservoir 5a and the inner wall of the second frame 2, the glue cures in this space, thus bonding and fixing the second nest 5 to the second frame 2.

Claims

1. A frame for a photovoltaic module, comprising a first frame assembly (A), a second frame assembly (B), the first frame assembly (A) and the second frame assembly (B) each being two, each first frame assembly (A) comprising a first frame (1) having an assembly cavity, each second frame assembly (B) comprising a second frame (2) having an assembly cavity, characterized in that, Each second frame assembly (B) also includes corner brackets (3) installed at both ends of the second frame assembly (B). Each corner bracket (3) includes a first connecting arm (3a) and a second connecting arm (3b). The first connecting arm (3a) and the second connecting arm (3b) are fixed together, and a 90° angle is formed between the first connecting arm (3a) and the second connecting arm (3b). The first connecting arm (3a) is inserted into the assembly cavity of the second frame (2), and the first connecting arm (3a) is fixed to the second frame (2). When the first frame assembly (A) is connected to the second frame assembly (B), the second connecting arm (3b) is inserted into the assembly cavity of the first frame (1), and the second connecting arm (3b) is fixed to the first frame (1).

2. The photovoltaic module frame of claim 1, wherein, The first frame assembly (A) further includes a first nest (4). The first frame (1) is provided with a first glue injection hole (1a). The first nest (4) is located in the assembly cavity on the first frame (1). Glue is injected into the first frame (1) through the first glue injection hole (1a) so that the first nest (4) is bonded and fixed to the first frame (1). The second connecting arm (3b) passes through the first nest (4) and is fixed to the first nest (4).

3. The photovoltaic module frame of claim 2, wherein, The second connecting arm (3b) includes a second connecting arm body (3b1), a second elastic component (3b2), and a second limiting component (3b3). There are multiple second elastic components (3b2). After one end of each second elastic component (3b2) is fixed to one end of the second connecting arm body (3b1), a second gap space (3b4) is formed between these second elastic components (3b2). The surface of the other end of each second elastic component (3b2) is fixed with a second limiting component (3b3). After the second connecting arm (3b) passes through the first nest (4), the end face of the second limiting component (3b3) cooperates with the first nest (4).

4. The photovoltaic module frame of claim 2, wherein, The first nest (4) is provided with a first glue storage tank (4a) corresponding to the first glue injection hole (1a), and the first glue storage tank (4a) is arranged along the circumference of the first nest (4).

5. The photovoltaic module frame of claim 1, wherein, The second frame (2) is provided with a second glue injection hole (2a). After the first connecting arm (3a) is inserted into the assembly cavity of the second frame (2), glue is injected into the second frame (2) through the second glue injection hole (2a) so that the first connecting arm (3a) is bonded and fixed to the second frame (2).

6. The photovoltaic module frame of claim 1, wherein, The second frame assembly (B) further includes a second nest (5). The second frame (2) is provided with a second glue injection hole (2a). The second nest (5) is located in the assembly cavity on the second frame (2). Glue is injected into the second frame (2) through the second glue injection hole (2a) so that the second nest (5) is bonded and fixed to the second frame (2). The first connecting arm (3a) passes through the second nest (5) and is fixed to the second nest (5).

7. The photovoltaic module frame of claim 6, wherein, The first connecting arm (3a) includes a first connecting arm body (3a1), a first elastic component (3a2), and a first limiting component (3a3). There are multiple first elastic components (3a2). After one end of each first elastic component (3a2) is fixed to one end of the first connecting arm body (3a1), a first gap space (3a4) is formed between these first elastic components (3a2). The surface of the other end of each first elastic component (3a2) is fixed with a first limiting component (3a3). After the first connecting arm (3a) passes through the second nest (5), the end face of the first limiting component (3a3) cooperates with the second nest (5).

8. The photovoltaic module frame of claim 6, wherein, The second nest (5) is provided with a second glue storage tank (5a) corresponding to the second glue injection hole (2a), and the second glue storage tank (5a) is arranged along the circumference of the second nest (5).

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