CN220711420U

CN220711420U - Corner connector, frame assembly and photovoltaic assembly

Info

Publication number: CN220711420U
Application number: CN202322235209.3U
Authority: CN
Inventors: 倪孙洋; 萧圣义; 陆如春; 金叶
Original assignee: Tongwei Solar Energy Nantong Co ltd
Current assignee: Tongwei Solar Energy Nantong Co ltd
Priority date: 2023-08-18
Filing date: 2023-08-18
Publication date: 2024-04-02
Anticipated expiration: 2033-08-18

Abstract

The application relates to a corner brace, a frame component and a photovoltaic component. Through setting up first boss on first connecting piece in the angle sign indicating number, set up first fastening hole on the second connecting piece, can be when fixing adjacent frame like this, can be earlier with first connecting piece and first frame lock, then fasten second connecting piece and second frame through the fastener, can reduce the thrust to first frame in the frame fixing process through the mode of fastener fastening, and then can reduce the atress of frame surface in the fixing process, be favorable to keeping the structural stability of frame. The bezel assembly includes the corner bracket. The photovoltaic module includes the frame assembly.

Description

Corner connector, frame assembly and photovoltaic assembly

Technical Field

The application relates to the technical field of photovoltaic modules, in particular to a corner connector, a frame assembly and a photovoltaic module.

Background

In photovoltaic modules, it is often necessary to connect adjacent frames with corner pieces. The conventional mode is to fasten two ends of the corner bracket to adjacent frames respectively, so as to fix the adjacent frames. The fixing mode can achieve a good fixing effect. However, in the process of buckling, after buckling the corner connector and one frame, when buckling the other frame and the corner connector, a large pushing force needs to be applied to the surface of the buckled frame to promote the buckling of the corner connector and the other frame, and the application of the pushing force may deform the surface of the frame, which is not beneficial to keeping the structural stability of the frame.

Disclosure of Invention

Based on this, it is necessary to provide a corner bracket which is beneficial to improving the structural stability in the frame fixing process, and a frame assembly and a photovoltaic assembly comprising the corner bracket.

A corner connector comprises a first connecting piece, a second connecting piece and an intersection piece; the first connecting piece and the second connecting piece extend out from the junction piece along different directions respectively, and are used for connecting a first frame and a second frame adjacent to the frame assembly respectively;

the first connecting piece is provided with a first surface, and a first boss is arranged on the first surface and used for enabling the first connecting piece to be buckled with the first frame;

the second connecting piece is provided with a second surface, a first fastening hole is formed in the second connecting piece, the second connecting piece penetrates through the first fastening hole through a fastening piece to be connected with the second frame, and the first fastening hole is opened in the second surface.

In some embodiments, the first surface and the second surface are perpendicular.

In some embodiments, the wall of the first fastening hole is provided with threads.

A frame assembly comprising a fastener, a first frame, a second frame, and the corner brace; the first frame and the second frame are adjacently arranged; the first frame is provided with an anti-withdrawal piece, and the first boss is abutted against the anti-withdrawal piece; the second frame is provided with a second fastening hole, the second fastening hole corresponds to the first fastening hole, and the fastener penetrates through the second fastening hole and stretches into the first fastening hole to fasten the second connecting piece and the second frame.

In some embodiments, a surface of the first bezel remote from the bezel assembly enclosure area is a curved surface; the surface of the second frame, which is far away from the surrounding area of the frame component, is a plane.

In some embodiments, the bezel assembly further comprises an end cap secured to the junction piece for shielding an end of the first bezel and an end of the second bezel.

In some embodiments, the end cap has a first end face and a second end face adjacent the first end face, the first end face being flush with a surface of the first bezel remote from the bezel assembly enclosure area; the second end face is flush with the surface, away from the surrounding area of the frame component, of the second frame.

In some embodiments, a first partition and a second partition are disposed in the end cover, a receiving cavity is formed between the first partition and the second partition, and the junction element is disposed in the receiving cavity.

In some embodiments, the intersection piece is provided with a hollowed-out part, and the hollowed-out part extends into the intersection piece along the thickness direction of the intersection piece; the first partition plate and/or the second partition plate is/are provided with a second boss facing the accommodating cavity, and the second boss is clamped to the hollowed-out part on the intersection piece.

The photovoltaic module comprises a battery module and a frame module, wherein the first frame and the second frame are positioned on two adjacent sides of the battery module.

Above-mentioned angle sign indicating number is through setting up first boss on first connecting piece, sets up first fastening hole on the second connecting piece, can be when fixing adjacent frame like this, can be earlier with first connecting piece and first frame lock, then fasten second connecting piece and second frame through the fastener, can reduce the thrust to first frame in the frame fixed process through the mode of fastener fastening, and then can reduce the atress of frame surface at fixed in-process, be favorable to keeping the structural stability of frame.

Drawings

FIG. 1 is a schematic view of a corner brace according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of another angle of the corner connector corresponding to FIG. 1;

fig. 3 is a schematic structural diagram of a photovoltaic module according to an embodiment of the present application;

FIG. 4 is an exploded view of the photovoltaic module corresponding to FIG. 3;

fig. 5 is a schematic structural diagram of a first frame in the photovoltaic module corresponding to fig. 3;

FIG. 6 is a schematic diagram illustrating connection between a corner connector and a first frame in the photovoltaic module shown in FIG. 3;

fig. 7 is a schematic structural diagram of a second frame in the photovoltaic module corresponding to fig. 3;

fig. 8 is a schematic connection diagram of the corner connector and the second frame in the photovoltaic module corresponding to fig. 3;

FIG. 9 is a schematic structural view of an end cap of the photovoltaic module of FIG. 3;

FIG. 10 is a schematic view of the end cap of FIG. 9 at another angle;

fig. 11 is a schematic connection diagram of the corner connector and the end cap in the photovoltaic module corresponding to fig. 3.

The figure indicates:

10. an angle code; 101. a first connector; 1011. a first surface; 1012. a first boss; 102. a second connector; 1021. a second surface; 1022. a first fastening hole; 103. a junction piece; 1031. a hollowed-out part; 20. a frame assembly; 201. a first frame; 2011. an anti-withdrawal member; 2012. a bending surface; 2013. a first clamping groove; 2014. a first connection groove; 202. a second frame; 2021. a second fastening hole; 2022. a plane; 2023. a second clamping groove; 2024. a second connecting groove; 203. a fastener; 204. an end cap; 2041. a first end face; 2042. a second end face; 2043. a first separator; 2044. a second separator; 2045. a receiving chamber; 2046. a second boss; 2047. folding angles; 2048. a third clamping groove; 30. a photovoltaic module; 301. and a battery assembly.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, an embodiment of the present application provides a corner key 10. The corner bracket 10 includes a first connector 101, a second connector 102, and a junction 103. The first connecting member 101 and the second connecting member 102 respectively extend from the junction member 103 along different directions, and the first connecting member 101 and the second connecting member 102 are respectively used for connecting the adjacent first frame 201 and the second frame 202 of the frame assembly 20. The first connector 101 has a first surface 1011, and a first boss 1012 is provided on the first surface 1011 for enabling the first connector 101 to be fastened to the first frame 201. The second connecting piece 102 has a second surface 1021, the second connecting piece 102 is provided with a first fastening hole 1022, the second connecting piece 102 is penetrated through the first fastening hole 1022 by the fastener 203 to be connected with the second frame 202, and the first fastening hole 1022 is opened on the second surface 1021.

The corner connector 10 in this embodiment is provided with the first boss 1012 on the first connecting piece 101 and the first fastening hole 1022 on the second connecting piece 102, so that when the adjacent frames are fixed, the first connecting piece 101 and the first frame 201 can be fastened first, then the second connecting piece 102 and the second frame 202 are fastened through the fastening piece 203, the thrust to the first frame 201 in the frame fixing process can be reduced through the fastening of the fastening piece 203, and then the stress of the frame surface in the fixing process can be reduced, so that the structural stability of the frames is maintained.

In some embodiments, the first surface 1011 and the second surface 1021 are perpendicular. Alternatively, the first surface 1011 is parallel to the thickness direction of the corner piece 10 and the second surface 1021 is perpendicular to the thickness direction of the corner piece 10.

It will be appreciated that the thickness direction is illustrated in fig. 1. Where the Z-direction represents the thickness direction of the corner key 10.

In some embodiments, the first surface 1011 is located on the inside of the corner brace 10. It will be appreciated that the intersection between the first connector 101 and the second connector 102 of the pod 10 is at an angle. The inside of the angle code 10 represents a side where the first connection member 101 and the second connection member 102 meet at an included angle in a range of more than 0 ° and less than 180 °.

In some embodiments, the first connector 101 and the second connector 102 meet at an angle of 90 °. Alternatively, the first surface 1011 is a surface of the first connection member 101 facing the second connection member 102.

In some embodiments, the second surface 1021 is perpendicular to the thickness direction of the corner key 10. Optionally, the first fastening hole 1022 extends from the second surface 1021 into the second connector 102 in the thickness direction of the corner brace 10. It is understood that the first fastening holes 1022 may extend into a portion of the thickness of the second connector 102, and may also extend through the second connector 102.

In some embodiments, the first fastening holes 1022 are a plurality of, and the plurality of first fastening holes 1022 are spaced apart on the second connector 102. Providing the plurality of first fastening holes 1022 on the second connecting piece 102 may enable the second connecting piece 102 and the second frame 202 to be more firmly connected. In the corner key 10 shown in fig. 1 and 2, there are two first fastening holes 1022, and the two first fastening holes 1022 are spaced apart. It is understood that the first fastening holes 1022 may also be designed according to the size of the second connection member 102 and the manufacturing requirements. For example, the first fastening holes 1022 may also be three, four, five, six, seven, eight, nine, ten, or the like.

In some embodiments, the walls of the first fastening holes 1022 are provided with threads. Providing threads (not shown) on the hole wall of the first fastening hole 1022 may improve the tightness of the cooperation between the fastener 203 and the first fastening hole 1022, and further improve the connection stability between the second connector 102 and the second frame 202. It will be appreciated that when the hole wall of the first fastening hole 1022 is provided with threads, the fastener 203 is provided with external threads that are adapted to the threads of the hole wall of the first fastening hole 1022, so that the fastener 203 and the first fastening hole 1022 can be more firmly adapted.

In some embodiments, the first boss 1012 is plural, and the plural first bosses 1012 are sequentially distributed on one side of the first connector 101. By the arrangement of the plurality of first bosses 1012, the first connecting piece 101 and the first frame 201 can be more firmly buckled. Optionally, the first boss 1012 has a barb configuration with a bevel oriented toward the junction 103. The barb structure has a certain non-return effect, and after the first connecting piece 101 is buckled with the first frame 201, the risk that the first connecting piece 101 is separated from the first frame 201 can be reduced. Further, the barb structure is oriented toward the intersection piece 103, so that the first connecting piece 101 can be inserted into the first frame 201 in a forward direction, and the first connecting piece 101 is not easy to be pulled out from the first frame 201 in a reverse direction. This can further improve the fastening effect of the first connector 101 and the first frame 201.

In some embodiments, the intersection 103 is provided with a hollowed-out portion 1031, and the hollowed-out portion 1031 extends into the intersection 103 along the thickness direction of the intersection 103. By arranging the hollowed-out parts 1031, on one hand, the amount of materials for manufacturing the corner connector 10 can be reduced, and the weight and manufacturing cost of the corner connector 10 can be reduced. On the other hand, the hollow portion 1031 may be used as a connection site to connect with other components. For example, the end cover 204 and the corner connector 10 can be clamped together by using the hollowed-out portion 1031 as a connecting point between the corner connector 10 and the end cover 204. It can be appreciated that the hollowed-out portion 1031 can be further disposed at other positions of the corner 10, such as the first connector 101 and/or the second connector 102, so that the weight and manufacturing cost of the corner 10 can be further reduced.

Referring to fig. 3-8, yet another embodiment of the present application provides a rim assembly 20. Frame assembly 20 includes fasteners 203, first frame 201, second frame 202, and corner brace 10 described above. The first frame 201 and the second frame 202 are disposed adjacent to each other. The first frame 201 is provided with an anti-back member 2011, and the first boss 1012 abuts against the anti-back member 2011. The second frame 202 is provided with a second fastening hole 2021, the second fastening hole 2021 corresponds to the first fastening hole 1022, and the fastener 203 passes through the second fastening hole 2021 and extends into the first fastening hole 1022 to fasten the second connecting piece 102 and the second frame 202.

In the frame assembly 20 of the present embodiment, the first boss 1012 is engaged with the anti-back member 2011 to lock the corner bracket 10 to the first frame 201, and the fastener 203 is engaged with the fastening hole to connect the corner bracket 10 to the second frame 202. This results in a structurally sound frame assembly 20. Meanwhile, in the installation process of the frame assembly 20 of the embodiment, the first connecting piece 101 and the first frame 201 may be fastened first, and then the second connecting piece 102 and the second frame 202 may be fastened by the fastening piece 203, so that the thrust received by the surface of the first frame in the fixing process may be reduced, which is beneficial to maintaining the structural stability of the frame.

It is understood that the fasteners 203 may be screws, bolts, pins, rivets, etc.

It is further understood that the anti-back-out member 2011 may be a boss, a groove, a hole, or the like provided on the first frame 201. The first boss 1012 abuts against the withdrawal preventing member 2011, so that the corner bracket 10 can be engaged with the first frame 201.

Referring to fig. 5 again, the anti-back-out member 2011 is a boss disposed on the first frame 201. In fig. 5, the protruding direction of the boss faces the inside of the first frame 201, the boss not being shown. Specifically, the boss may be manufactured by punching a hole on the first frame 201 by a punching process, where a hole wall of the hole formed by punching extends into the first frame 201 as the anti-withdrawal member 2011.

It can be appreciated that the first frame 201 and the second frame 202 are hollow structures, and the first connecting member 101 and the second connecting member 102 extend into the first frame 201 and the second frame 202, respectively.

It is further understood that the first frame 201 and the second frame 202 are aluminum alloy frames.

Referring again to fig. 4, in some embodiments, a surface of the first frame 201 away from the surrounding area of the frame assembly 20 is a bending surface 2012; the surface of second bezel 202 remote from the enclosed area of bezel assembly 20 is planar 2022. Along with the continuous expansion of the application range of the photovoltaic module 30, in order to adapt to different application scenarios, the design of the bending frame is also increasing. However, the bending surface 2012 of the bending frame is more sensitive to the pushing force than the frame of the plane 2022, and deformation of the bending surface 2012 occurs more easily when the pushing force is applied to the bending surface 2012. At this time, adopt the bight 10 in this application to connect the frame of buckling, can reduce the thrust to the face 2012 of buckling in the installation, effectively keep the structural stability of the face 2012 of buckling.

It is understood that the bending surface 2012 may be a bending surface 2012 formed by bending a plurality of planes, or may be a curved surface. Optionally, the bending surface 2012 is an arc surface. Further alternatively, the curved surface 2012 is a quarter arc surface.

It can be further understood that referring to fig. 5 to 8, the first frame 201 is provided with a first slot 2013, and the second frame 202 is provided with a second slot 2023. The first clamping groove 2013 and the second clamping groove 2023 are respectively used for clamping adjacent side edges of the battery assembly 301.

It can be further understood that referring to fig. 5 to 8 again, the first frame 201 is provided with a first connecting slot 2014, and the first connecting piece 101 is inserted into the first connecting slot 2014. The second frame 202 is provided with a second connecting groove 2024, and the second connecting piece 102 is inserted into the second connecting groove 2024.

Please refer to fig. 3-4, and fig. 9-11. In some embodiments, the rim assembly 20 further includes an end cap 204, the end cap 204 being secured to the junction element 103 for shielding the end of the first rim 201 and the end of the second rim 202. The end portions of the first and second rims 201 and 202 may be protected by the provision of the end caps 204 while also improving the integrity and aesthetics of the rim assembly 20. Optionally, the end cap 204 is a plastic end cap 204. Further alternatively, the end cap 204 may be manufactured by injection molding.

Referring again to fig. 9, end cap 204 has a first end surface 2041 and a second end surface 2042 adjacent to first end surface 2041, first end surface 2041 being flush with a surface of first bezel 201 remote from a peripheral region of bezel assembly 20; the second end surface 2042 is flush with a surface of the second bezel 202 remote from the enclosed area of the bezel assembly 20. Optionally, the first end surface 2041 is flush with the curved surface 2012 and the second end surface 2042 is flush with the plane 2022.

Referring to fig. 10 and 11, in some embodiments, a first partition 2043 and a second partition 2044 are provided in the end cap 204, the first partition 2043 and the second partition 2044 previously forming a receiving cavity 2045, and the junction 103 is provided in the receiving cavity 2045. Receiving cavity 2045 may be formed by first spacer 2043 and second spacer 2044, and in rim assembly 20, junction element 103 may be disposed within receiving cavity 2045, which may allow for a more stable connection of corner brace 10 within rim assembly 20, as further improving the stability of rim assembly 20.

In some embodiments, the intersection 103 is provided with a hollowed-out portion 1031, and the hollowed-out portion 1031 extends into the intersection 103 along the thickness direction of the intersection 103. The first partition 2043 and/or the second partition 2044 is provided with a second boss 2046 facing the accommodating cavity 2045, and the second boss 2046 is clamped to the hollowed-out portion 1031 on the junction piece 103. In the end cover 204 shown in fig. 10, the first partition 2043 is provided with a second boss 2046, and the second boss 2046 is clamped to the hollowed-out portion 1031 on the junction piece 103, so that the end cover 204 and the corner connector 10 can be connected.

It can be appreciated that, when the hollowed-out portion 1031 on the intersection member 103 penetrates the intersection member 103 along the thickness direction of the corner brace 10, the second boss 2046 may be disposed on the first partition 2043 and the second partition 2044, respectively, so that the stability of the connection between the end cover 204 and the corner brace 10 can be further improved. It will also be appreciated that in the end cap 204, the second boss 2046 may be provided on the second partition 2044 according to the position of the hollowed-out portion 1031 on the junction 103, and no boss may be provided on the first partition 2043.

Referring to fig. 9 and 10 again, in some embodiments, the end cover 204 is provided with a folded angle 2047, and two ends of the folded angle 2047 are respectively connected to the top surfaces of the first frame 201 and the second frame 202. By the arrangement of the folded angle 2047, the connection of the first frame 201, the second frame 202 and the end cover 204 can be smoother, and the ends of the first frame 201 and the second frame 202 can be better protected. Optionally, the corner 2047 is L-shaped in shape.

Referring again to fig. 9, in some embodiments, a third slot 2048 is provided on the end cap 204. The third clamping groove 2048 is used to clamp the corner of the battery assembly 301. This allows for better coating of the corners of the battery assembly 301 and better protection of the battery assembly 301. Optionally, the third slot 2048 is closer to the fold angle 2047 than the receiving cavity 2045.

Referring to fig. 3 and 4, a further embodiment of the present application provides a photovoltaic module 30. The photovoltaic module 30 includes a cell module 301 and the above-mentioned frame module 20, wherein the first frame 201 and the second frame 202 are located on two adjacent sides of the cell module 301.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. The scope of the patent is therefore intended to be covered by the appended claims, and the description and drawings may be interpreted as illustrative of the contents of the claims.

Claims

1. The corner connector is characterized by comprising a first connecting piece, a second connecting piece and an intersection piece; the first connecting piece and the second connecting piece extend out from the junction piece along different directions respectively, and are used for connecting a first frame and a second frame adjacent to the frame assembly respectively;

2. The corner brace of claim 1, wherein the first surface and the second surface are perpendicular.

3. A corner brace according to claim 1 or 2, wherein the wall of the first fastening hole is provided with a thread.

4. A frame assembly comprising a fastener, a first frame, a second frame, and a corner brace as defined in any one of claims 1 to 3; the first frame and the second frame are adjacently arranged; the first frame is provided with an anti-withdrawal piece, and the first boss is abutted against the anti-withdrawal piece; the second frame is provided with a second fastening hole, the second fastening hole corresponds to the first fastening hole, and the fastener penetrates through the second fastening hole and stretches into the first fastening hole to fasten the second connecting piece and the second frame.

5. The rim assembly of claim 4, wherein a surface of the first rim remote from the rim assembly enclosure area is a curved surface; the surface of the second frame, which is far away from the surrounding area of the frame component, is a plane.

6. The rim assembly of claim 4 or 5, further comprising an end cap secured to the junction piece for shielding an end of the first rim and an end of the second rim.

7. The rim assembly of claim 6, wherein the end cap has a first end face and a second end face adjacent the first end face, the first end face being flush with a surface of the first rim remote from the rim assembly enclosure area; the second end face is flush with the surface, away from the surrounding area of the frame component, of the second frame.

8. The rim assembly of claim 6, wherein the end cap has a first spacer and a second spacer disposed therein, the first spacer and the second spacer defining a receiving cavity therebetween, the junction element being disposed within the receiving cavity.

9. The frame assembly according to claim 8, wherein the intersection member is provided with a hollowed-out portion, and the hollowed-out portion extends into the intersection member along a thickness direction of the intersection member; the first partition plate and/or the second partition plate is/are provided with a second boss facing the accommodating cavity, and the second boss is clamped to the hollowed-out part on the intersection piece.

10. A photovoltaic module comprising a cell module and the frame module of any one of claims 4 to 9, the first and second frames being located on adjacent sides of the cell module.