Nested corner code, photovoltaic frame and photovoltaic module

Abstract

The application belongs to the technical field of photovoltaic modules, and specifically discloses a nested corner code, a photovoltaic frame and a photovoltaic module. The nested corner code is used for the photovoltaic frame and comprises a corner code main body and two nested bodies. The corner code main body comprises two connecting arms corresponding to the two nested bodies, one end of the two connecting arms is connected, the two connecting arms are perpendicular, and the other end of the two connecting arms away from each other is respectively provided with a clamping hole. Each nested body comprises a top plate, a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are symmetrically connected on both sides of the top plate, the top plate, the first vertical plate and the second vertical plate form a sleeving interval for cooperating with the connecting arms, the top plate is provided with a clamping part for connecting with the clamping hole, and the clamping part is located in the sleeving interval. The nested corner code is simple in structure, convenient and fast to operate, does not need to damage the frame, can be applied to photovoltaic frames made of different materials, especially photovoltaic frames made of composite materials, and cost is reduced.

Description

Technical Field

[0001] This application relates to the field of photovoltaic module technology, specifically to a nested corner bracket, a photovoltaic frame, and a photovoltaic module. Background Technology

[0002] With the rapid development of the new energy industry, solar energy has been widely used and developed due to its energy-saving, environmentally friendly, and renewable characteristics, leading to the emergence of solar photovoltaic (PV) modules. PV modules can convert solar energy into electrical energy, thereby reducing power generation costs. Among PV modules, silicon wafers, as the main material of solar PV panels, have the highest cost, followed by the PV frame. Currently, PV frames typically consist of four frames connected to form a rectangular frame structure, with corner brackets used to connect the inner cavities at the ends of adjacent frames (i.e., the four corners of the PV frame). Aluminum is the most widely used material for PV frames, but to reduce costs, composite material PV frames, such as fiberglass composite PV frames, are beginning to enter the PV field. However, existing corner bracket connections at the corners of PV frames mostly require drilling holes in the frame to meet installation requirements. This damages the frame and affects its overall strength, and also suffers from problems such as large adhesive application, inconvenient operation, high cost, and low safety and reliability, failing to meet the connection requirements at the corners of PV frames. Utility Model Content

[0003] The purpose of this application is to provide a nested corner bracket, a photovoltaic frame, and a photovoltaic module. This corner bracket has a simple structure, is easy and quick to operate, and can ensure the overall strength of the frame without damaging it. It is applicable to photovoltaic frames made of different materials, especially composite material photovoltaic frames, and also helps to reduce costs.

[0004] To solve at least one of the above-mentioned technical problems, this application adopts the following technical solution:

[0005] According to a first aspect of this application, a nested corner bracket is provided for a photovoltaic frame, comprising: a corner bracket body and two nested bodies; wherein, the corner bracket body includes two connecting arms corresponding one-to-one with the two nested bodies, one end of the two connecting arms is connected to each other and the two connecting arms are perpendicular to each other, and the ends of the two connecting arms that are far apart are respectively provided with snap-fit ​​holes; each nested body includes a top plate, a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are symmetrically connected on both sides of the top plate, the top plate, the first vertical plate and the second vertical plate form a socketing interval for cooperating with the connecting arms, and the top plate is provided with a snap-fit ​​part for connecting with the snap-fit ​​hole, the snap-fit ​​part being located in the socketing interval.

[0006] In one possible implementation of the first aspect described above, each first vertical plate has a first connecting portion for connecting with a connecting arm on its surface facing the socket section, and each connecting arm has a second connecting portion for connecting with the first connecting portion.

[0007] In one possible implementation of the first aspect described above, the first connecting part is engaged with the second connecting part, and the two second connecting parts are respectively disposed on the inner surfaces of the two connecting arms.

[0008] In one possible implementation of the first aspect described above, the first connecting part is integrally formed with the first vertical plate, the first connecting part is a first locking tooth or protrusion structure, and the second connecting part is a second locking tooth or protrusion structure that cooperates with the first connecting part.

[0009] In one possible implementation of the first aspect, the first locking teeth are a plurality of teeth arranged sequentially along the length of the first vertical plate, and each first locking tooth extends along the width of the first vertical plate; the second locking teeth are a plurality of teeth arranged sequentially along the length of the connecting arm, and each second locking tooth extends along the width of the connecting arm, the first locking teeth and the second locking teeth correspond one-to-one, and the plurality of first locking teeth and the plurality of second locking teeth respectively form a sawtooth structure.

[0010] In one possible implementation of the first aspect described above, each of the second locking teeth on each connecting arm is inclined toward the connection point of the two connecting arms, and the first locking tooth and its mating second locking tooth are inclined in opposite directions.

[0011] In one possible implementation of the first aspect described above, the end of the first or second vertical plate near the top plate is formed with a bent portion that connects to the top plate and bends toward the socket section, and each connecting arm is provided with an inclined surface for cooperating with the bent portion.

[0012] In one possible implementation of the first aspect mentioned above, the top plate, the first vertical plate, and the second vertical plate are integrally formed.

[0013] In one possible implementation of the first aspect mentioned above, a through hole is provided on the top plate, and two snap-fit ​​parts are provided on the top plate and are symmetrically located on both sides of the through hole. Each connecting arm has two snap-fit ​​holes, and the snap-fit ​​parts are integrally formed with the top plate.

[0014] In one possible implementation of the first aspect described above, each connecting arm is provided with a weight reduction hole, and the snap-fit ​​hole communicates with the adjacent weight reduction hole.

[0015] According to a second aspect of this application, a photovoltaic frame is provided for a photovoltaic module, including the nested corner brackets of the first aspect described above.

[0016] According to a third aspect of this application, a photovoltaic module is provided, including the photovoltaic frame described in the second aspect above.

[0017] The above-mentioned technical solution of this application has at least one of the following beneficial effects:

[0018] According to the nested corner bracket of this application, the two connecting arms of the corner bracket body are respectively provided with snap-fit ​​holes at their far ends. The first and second vertical plates of the nested body are symmetrically connected to both sides of the top plate. The top plate, the first vertical plate, and the second vertical plate form a socketing interval for cooperating with the connecting arms. The top plate is provided with a snap-fit ​​part for connecting with the snap-fit ​​hole. The snap-fit ​​part is located in the socketing interval. Each connecting arm is inserted into the socketing interval of its corresponding nested body until the snap-fit ​​part is inserted into the snap-fit ​​hole to complete the snap-fit, thus achieving a stable connection between the corner bracket body and the two nested bodies. Moreover, only structural adhesive needs to be applied to the surfaces of the first and second vertical plates away from the socketing interval to achieve a stable connection between the nested corner bracket and the end cavities of two adjacent frames of the photovoltaic frame. As such, the nested corner bracket of this application has the characteristics of simple and compact structure, small size, simple processing and manufacturing, and convenient and quick operation. This corner bracket does not need to damage the frame, ensuring the overall strength of the frame, and can be applied to photovoltaic frames of different material types, especially composite material photovoltaic frames. At the same time, this design can also reduce the amount of adhesive applied, significantly reducing costs while improving safety, stability, and reliability.

[0019] In addition, unless otherwise specified in the technical solution of this application, the technical solution can be implemented by adopting conventional means in the field. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a nested corner code according to one embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the structure of the corner code body according to one embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the structure of a nested body according to one embodiment of this application;

[0024] Figure 4 This is a partial structural diagram of a nested body according to one embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the structure of a nested body according to another embodiment of this application;

[0026] Figure 6 This is a schematic diagram of the structure of a nested body according to another embodiment of this application;

[0027] Figure 7 This is a schematic diagram of the structure of nested corner brackets and borders in one embodiment of this application.

[0028] Explanation of the labels in the attached drawings:

[0029] Corner bracket body 100; connecting arm 101; snap-fit ​​hole 102; second connecting part 103; inclined surface 104; weight reduction hole 105;

[0030] Nested body 200; Top plate 201; First vertical plate 202; Second vertical plate 203; Looping section 204; Snap-fit ​​part 205; First connecting part 206; Bending part 207; Through hole 208;

[0031] Border 300. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only some, not all, of the embodiments of this application, and are used merely to explain this application and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," "outer," "both ends," "both sides," "bottom," and "top," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," "upper-level," "lower-level," "main," and "secondary," etc., are used for descriptive purposes only and can be simply used to more clearly distinguish different components, and should not be construed as indicating or implying relative importance.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] refer to Figure 1 The diagram schematically illustrates a nested corner bracket provided according to an embodiment of this application for use in photovoltaic frames. The nested corner bracket of this application includes: a corner bracket body 100 and two nested bodies 200.

[0036] Among them, reference Figure 2 As shown, the corner code body 100 includes two connecting arms 101 corresponding to the two nested bodies 200. One end of the two connecting arms 101 is connected, and the two connecting arms 101 are substantially perpendicular. The ends of the two connecting arms 101 that are far apart are respectively provided with snap-fit ​​holes 102. (Reference) Figures 3-6 As shown, each nested body 200 includes a top plate 201, a first vertical plate 202, and a second vertical plate 203. The first vertical plate 202 and the second vertical plate 203 are symmetrically connected on both sides of the top plate 201. The top plate 201, the first vertical plate 202, and the second vertical plate 203 form a socketing section 204 for cooperating with the connecting arm 101. The top plate 201 is provided with a snap-fit ​​part 205 for connecting with the snap-fit ​​hole 102. The snap-fit ​​part 205 is located in the socketing section 204. It should be noted that the included angle between the two connecting arms 101 is approximately 90°, with a deviation range of ±0.5°.

[0037] refer to Figure 1 , 7 As shown, the two connecting arms 101 of the corner bracket body 100 are respectively inserted into the socketing interval 204 of their respective nested bodies 200 until the snap-fit ​​part 205 on the top plate 201 is inserted into the snap-fit ​​hole 102 on the connecting arm 101 to complete the snap-fit, thereby realizing a stable connection between the corner bracket body 100 and the two nested bodies 200. Moreover, it is only necessary to apply structural adhesive to the surface of the first vertical plate 202 and the second vertical plate 203 away from the socketing interval 204 to achieve a stable connection between the nested corner bracket and the end cavity of the two adjacent frame 300 of the photovoltaic frame. There is no need to open holes in the frame 300, which will not damage the frame 300, ensuring the overall strength of the frame 300 and reducing the amount of adhesive applied.

[0038] Therefore, the nested corner bracket of this application has a simple and compact structure, small size, convenient processing and manufacturing, convenient and quick operation, and a stable connection. This corner bracket does not require drilling holes in the frame 300, thus avoiding damage to the frame 300 and ensuring its overall strength. It is applicable to photovoltaic frames made of different materials, especially composite material photovoltaic frames, and has a wide range of applications. At the same time, it also reduces the amount of adhesive applied, improves safety, stability, and reliability, and reduces costs.

[0039] In some embodiments, reference Figures 2-6As shown, each first vertical plate 202 has a first connecting portion 206 for connecting to the connecting arm 101 on its surface facing the socket section 204, and each connecting arm 101 has a second connecting portion 103 for connecting to the first connecting portion 206. The first connecting portion 206 and the second connecting portion 103 can be connected by a snap-fit ​​connection or by other suitable methods in the prior art. Figure 2 For reference, two second connecting parts 103 can be respectively disposed on the inner surface of the two connecting arms 101. With this configuration, the end of the connecting arm 101 is connected to the top plate 201 through the snap-fit ​​part 205 and the snap-fit ​​hole 102, while the first vertical plate 202 is connected to the connecting arm 101 through the first connecting part 206 and the second connecting part 103, thereby ensuring a more stable connection between the corner bracket body 100 and the nesting body 200, higher safety and reliability, and improved product lifespan.

[0040] In some embodiments, the first connecting portion 206 is integrally formed with the first vertical plate 202, and the second connecting portion 103 and the connecting arm 101 can also be integrally formed. For example... Figure 3 As shown, the first connecting part 206 can be formed on the first vertical plate 202 by bending; as Figure 5 As shown, the first connecting part 206 can be formed on the first vertical plate 202 by processing methods such as pultrusion, extrusion, injection molding, and 3D printing; Figure 6 As shown, after the nested body 200 is connected to the connecting arm 101, a first connecting portion 206 can be formed on the surface of the first vertical plate 202 away from the sleeve section 204 by using a mold or other equipment, through processes such as pressing rivets. This forms the first connecting portion 206 on the surface of the first vertical plate 202 facing the sleeve section 204, ensuring a tight fit between the first vertical plate 202 and the connecting arm 101. This design results in a more stable structure and a longer service life. The processing method for the second connecting portion 103 can be the same as that for the first connecting portion 206, and will not be described further here.

[0041] In one embodiment, reference is made to... Figure 2 , 3 As shown in Figure 5, the first connecting part 206 is a first locking tooth, and the second connecting part 103 is a second locking tooth that cooperates with the first locking tooth. Exemplarily, multiple first locking teeth are sequentially arranged along the length direction of the first vertical plate 202, and each first locking tooth extends along the width direction of the first vertical plate 202; multiple second locking teeth are sequentially arranged along the length direction of the connecting arm 101, and each second locking tooth extends along the width direction of the connecting arm 101. The first and second locking teeth correspond one-to-one, and the multiple first and multiple second locking teeth respectively form a serrated structure. This arrangement ensures a more stable connection between the nested body 200 and the connecting arm 101, resulting in higher safety and reliability.

[0042] Further, refer to Figure 2 ,3 As shown in Figure 5, each second locking tooth on each connecting arm 101 is inclined toward the connection point of the two connecting arms 101, and the inclination direction of the first locking tooth and its cooperating second locking tooth is opposite. With this configuration, when the connecting arm 101 is inserted into the socket section 204 of the nest 200, the inclined first and second locking teeth not only facilitate the smooth insertion of the connecting arm 101, but also have a certain reverse self-locking effect, ensuring a more secure connection between the nest 200 and the connecting arm 101.

[0043] In another embodiment, reference Figure 2 , 6 As shown, the first connecting part 206 is a protruding structure, and the second connecting part 103 is a second locking tooth that mates with the protruding structure. The second locking tooth can adopt the aforementioned locking tooth structure. After the nested body 200 is connected to the connecting arm 101, a protruding structure can be formed on the surface of the first vertical plate 202 away from the sleeve interval 204 using a mold or other equipment, such as by applying rivets, thereby ensuring a tight fit between the first vertical plate 202 and the connecting arm 101. This design makes manufacturing more convenient.

[0044] In some embodiments, reference Figure 2 , 4 As shown, the first vertical plate 202 has a bent portion 207 at one end near the top plate 201, which connects to the top plate 201 and bends towards the socket section 204. Each connecting arm 101 has a bevel 104 for engaging with the bent portion 207. This arrangement not only facilitates confirmation of the installation direction of the connecting arm 101 and the nested body 200, but also reduces the overall size. Alternatively, the bent portion 207 can also be formed at one end of the second vertical plate 203 near the top plate 201, connecting to the top plate 201 and bending towards the socket section 204.

[0045] In some embodiments, reference Figures 3-6 As shown, the top plate 201, the first vertical plate 202, and the second vertical plate 203 are integrally formed, for example, by injection molding, casting, or 3D molding. Similarly, refer to... Figure 2 As shown, the two connecting arms 101 can also be integrally molded. This design makes the structure more stable and extends its service life.

[0046] In some embodiments, reference Figure 4 As shown, the top plate 201 has a through hole 208, and there are two snap-fit ​​parts 205 on the top plate 201, which are symmetrically located on both sides of the through hole 208. Each connecting arm 101 has two snap-fit ​​holes 102, and the snap-fit ​​parts 205 are integrally formed with the top plate 201. (Reference) Figure 2As shown, each connecting arm 101 is provided with a weight-reducing hole 105. There can be multiple weight-reducing holes 105 on each connecting arm 101, and each weight-reducing hole 105 can extend through the width of the connecting arm 101. One weight-reducing hole 105 is adjacent to a snap-fit ​​hole 102, and the snap-fit ​​hole 102 communicates with its adjacent weight-reducing hole 105. The snap-fit ​​part 205 can be provided with a snap-fit ​​structure with a sloping surface. During the connection process, when the two snap-fit ​​parts 205 are inserted into their respective snap-fit ​​holes 102, under the action of the sloping surface of the snap-fit ​​structure, the two snap-fit ​​parts 205 are elastically deformed and squeezed outwards or inwards. When the snap-fit ​​structure passes through the snap-fit ​​hole 102 and enters the weight-reducing hole 105, the snap-fit ​​part 205 elastically recovers, causing the snap-fit ​​structure to be engaged on the outer side of the end of the snap-fit ​​hole 102 near the weight-reducing hole 105, thus achieving the snap-fit. This design makes operation more convenient, the connection more stable, and also reduces weight and cost.

[0047] A photovoltaic frame, also provided according to an embodiment of this application, is used for photovoltaic modules and includes the aforementioned nested corner brackets. The photovoltaic frame typically consists of four frame members 300 connected to form a rectangular frame structure, as shown in the reference. Figure 7 As shown, the end cavities of two adjacent frame 300s of the photovoltaic frame are connected by nested corner brackets. The frame 300 can be made of aluminum, composite materials or other suitable materials.

[0048] A photovoltaic module is also provided according to an embodiment of this application, including the aforementioned photovoltaic frame. The photovoltaic frame houses a photovoltaic panel (i.e., a laminate), and the photovoltaic panel can be any existing photovoltaic panel, which will not be described in detail here.

[0049] Based on the various embodiments of this application described above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.

[0050] The above descriptions are merely some embodiments of this application, used only to illustrate the technical solutions of this application, and not to limit it. It should be understood that those skilled in the art can make improvements or substitutions based on the above descriptions without departing from the inventive concept of this application, and all such improvements and substitutions should fall within the protection scope of this application. In this case, all details can be replaced with equivalent elements, and materials, shapes, and sizes can also be arbitrary.

Claims

1. A nested corner code, characterized in that, For photovoltaic frames, including a corner bracket body (100) and two nested bodies (200); The corner code body (100) includes two connecting arms (101) that correspond one-to-one with the two nested bodies (200). One end of the two connecting arms (101) is connected to each other, and the two connecting arms (101) are perpendicular to each other. The ends of the two connecting arms (101) that are far apart are respectively provided with snap-fit ​​holes (102). Each of the nested bodies (200) includes a top plate (201), a first vertical plate (202), and a second vertical plate (203). The first vertical plate (202) and the second vertical plate (203) are symmetrically connected to both sides of the top plate (201). The top plate (201), the first vertical plate (202), and the second vertical plate (203) form a socketing section (204) for cooperating with the connecting arm (101). The top plate (201) is provided with a snap-fit ​​part (205) for connecting with the snap-fit ​​hole (102). The snap-fit ​​part (205) is located in the socketing section (204).

2. The nested corner code according to claim 1, characterized in that, Each of the first vertical plates (202) has a first connecting portion (206) on its surface facing the socket section (204) for connecting with the connecting arm (101), and each of the connecting arms (101) has a second connecting portion (103) for connecting with the first connecting portion (206).

3. The nested corner code according to claim 2, characterized in that, The first connecting part (206) engages with the second connecting part (103), and the two second connecting parts (103) are respectively disposed on the inner surface of the two connecting arms (101).

4. The nested corner code according to claim 3, characterized in that, The first connecting part (206) is integrally formed with the first vertical plate (202). The first connecting part (206) is a first locking tooth or protrusion structure, and the second connecting part (103) is a second locking tooth that cooperates with the first connecting part (206).

5. The nested corner code according to claim 4, characterized in that, The first locking teeth are a plurality of teeth arranged sequentially along the length direction of the first vertical plate (202), and each first locking tooth extends along the width direction of the first vertical plate (202); the second locking teeth are a plurality of teeth arranged sequentially along the length direction of the connecting arm (101), and each second locking tooth extends along the width direction of the connecting arm (101). The first locking teeth and the second locking teeth correspond one-to-one, and the plurality of first locking teeth and the plurality of second locking teeth respectively form a sawtooth structure.

6. The nested corner code according to claim 5, characterized in that, Each of the second teeth on each of the connecting arms (101) is inclined toward the connection point of the two connecting arms (101), and the first tooth is inclined in the opposite direction to the second tooth that it mates with.

7. The nested corner code according to claim 1, characterized in that, The first vertical plate (202) or the second vertical plate (203) has a bent portion (207) at one end near the top plate (201) that is connected to the top plate (201) and bends toward the socket section (204). Each connecting arm (101) is provided with a slope (104) for cooperating with the bent portion (207). The top plate (201), the first vertical plate (202), and the second vertical plate (203) are integrally formed.

8. The nested corner code according to claim 1, characterized in that, The top plate (201) is provided with a through hole (208), and there are two snap-fit ​​parts (205) on the top plate (201), which are symmetrically located on both sides of the through hole (208). There are two snap-fit ​​holes (102) on each connecting arm (101), and the snap-fit ​​part (205) is integrally formed with the top plate (201). Each of the connecting arms (101) is provided with a weight reduction hole (105), and the snap-fit ​​hole (102) communicates with the adjacent weight reduction hole (105).

9. A photovoltaic frame, characterized in that, For use in photovoltaic modules, including the nested corner brackets as described in any one of claims 1 to 8.

10. A photovoltaic module, characterized in that, Includes the photovoltaic frame as described in claim 9.

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