CN219718155U

CN219718155U - Solar cell frame

Info

Publication number: CN219718155U
Application number: CN202320567465.XU
Authority: CN
Inventors: 谢凯; 李小飞; 夏伟; 胡红霞
Original assignee: Jiangyin Yurun Photovoltaic Materials Co ltd
Current assignee: Jiangyin Yurun Photovoltaic Materials Co ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-09-19
Anticipated expiration: 2033-03-22

Abstract

The utility model relates to a solar cell frame which is formed by splicing two symmetrically arranged first frames (7) and two symmetrically arranged second frames (8) end to end through corner brackets (6), wherein the first frames (7) and the second frames (8) both comprise a support body (1) with a rectangular cross section, the top of the support body (1) is provided with a cantilever structure (2), and a clamping part is formed between the cantilever structure and the top surface of the support body (1); the bottom surface of the support body (1) of the first frame (7) is provided with a mounting plate (3); and glue containing cavities (4) are respectively arranged at symmetrical inner wall positions of the clamping part, namely the bottom surface of the cantilever structure (2) and the top surface of the support body (1). The utility model has the advantages of good double-sided sealing performance, light overall weight, simple processing technology, high yield and low manufacturing cost.

Description

Solar cell frame

Technical Field

The utility model relates to a solar cell frame, and belongs to the technical field of aluminum frames for solar cells.

Background

Solar photovoltaic panels, also known as solar panels, are devices that convert solar radiation energy directly or indirectly into electrical energy by absorption of sunlight, either through the photoelectric or photochemical effects. When the existing solar photovoltaic panel is installed, the photovoltaic panel is installed in a rectangular frame firstly, and then the photovoltaic panel is installed on a solar bracket through a connecting plate on the frame. The frame of the photovoltaic panel is generally formed by splicing four sections and comprises two symmetrical long frames and two short frames, corner codes are inserted into the inner cavities of splicing nodes of the four sections, four pits distributed in a rectangular mode are punched at the end splicing points of the four frames, the corner code locking assembly is realized by utilizing anchor points formed by protruding parts at the bottoms of the pits and saw teeth on the corner codes to be meshed, and the connection of adjacent section frames is completed; in order to meet the waterproof isolation requirements of four sides of a photovoltaic panel, sealant is required to be smeared at the panel clamping part of the frame, when the panel is installed in the frame clamping part, redundant sealant is extruded out of the top surface and the bottom surface of the panel, extruded sealant is reserved in the sealant containing cavity of the clamping part, the sealing effect is enhanced, the sealant extruded out of the frame in the subsequent cleaning process can be avoided, and the operation flow is simplified.

At present, according to the installation direction of a rectangular panel, only a long frame or a short frame of a frame is generally connected with a bracket, namely, only two frames at opposite positions of four frames of the frame are connected with the bracket through connecting plates, and the sections of long frames and short frames of the existing frames are consistent, and all the sections of the long frames and short frames of the existing frames comprise connecting mounting plates, so that the overall weight of a panel assembly is increased, and the manufacturing cost of an aluminum frame is increased; the bottom of the clamping part of the traditional frame is not provided with a corresponding glue containing cavity, so that redundant sealant is extruded out of the bottom of the panel, the subsequent cleaning work is required to be added to the double-sided power generation panel, the sealant layer on the bottom surface of the panel is thin, and the tightness is poor; when the pit anchor points are punched and meshed at the splicing points of the end parts of the frames, punching cracks are easy to generate, so that the section is scrapped, the manufacturing rate is lower, and the production cost is higher.

The Chinese patent application document CN108809237A discloses a novel asymmetric frame for a solar photovoltaic module, and the asymmetric frame is adopted, so that the overall weight of the module is reduced, the manufacturing cost of the frame is reduced, but the frame connecting points are required to be cut for multiple times in different directions, and the complexity of the cutting process is improved; the bottom of the frame clamping part is not provided with a glue containing cavity, so that the sealing effect at the bottom surface of the edge of the panel is poor, and if the panel with double-sided power generation is used, the residual glue at the bottom surface is required to be cleaned;

therefore, there is a need for a solar cell frame that has good sealing properties against the upper and lower surfaces of the panel, is lightweight, has high yield, and is inexpensive.

Disclosure of Invention

The utility model aims to overcome the defects and provide the solar cell frame which has the advantages of good double-sided sealing performance, light overall weight, simple processing technology, high yield and low manufacturing cost.

The purpose of the utility model is realized in the following way:

the solar cell frame is formed by splicing two symmetrically arranged first frames and two symmetrically arranged second frames in an end-to-end mode through corner connectors, wherein the first frames and the second frames comprise supporting bodies with rectangular cross sections, cantilever structures are arranged at the tops of the supporting bodies, and clamping parts are formed between the cantilever structures and the top surfaces of the supporting bodies; the bottom surface of the support body of the first frame is provided with a mounting plate; and glue containing cavities are respectively arranged at symmetrical inner wall positions of the clamping part, namely the bottom surface of the cantilever structure and the top surface of the support body.

Further, the clamping part comprises two groups of symmetrically arranged glue containing cavities.

Further, the end parts of the first frame and the second frame are cut into 45-degree oblique angles which are spliced with each other.

Further, the inner side surfaces of the end support bodies of the first frame and the second frame are provided with fastening anchor points.

Furthermore, three fastening anchor points are distributed in a delta shape.

Further, the total length of the saw teeth of the corner connector is L, and the front-back row distance of the fastening anchor point is not less than 0.8L.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the glue containing cavities are arranged on the two clamping arms of the frame clamping part, so that the sealing performance of the upper and lower sides of the edge of the panel is improved, and the glue removing operation is simplified; the mounting plate for connecting the bracket is arranged on the first frame, the mounting plate is not arranged on the second frame without connecting the bracket, the weight of the whole frame is reduced, the end part of the first frame is cut only once, the processing technology is simple, and the manufacturing cost is reduced; the spacing and distribution of fastening anchor points are limited, so that the stress state of stamping pit anchor points is improved, stamping cracking is reduced, and the yield is improved.

Drawings

Fig. 1 is a schematic diagram of an assembly structure of a first frame and a second frame of a solar cell frame according to the present utility model.

Fig. 2 is a schematic cross-sectional view of a first frame of a solar cell according to the present utility model.

Fig. 3 is a schematic cross-sectional view of a second frame of the solar cell frame according to the present utility model.

Fig. 4 is a schematic diagram of distribution shapes of fastening anchor points of a solar cell frame according to the present utility model.

Wherein:

the support body 1, cantilever structure 2, mounting panel 3, hold gluey chamber 4, fastening anchor point 5, angle sign indicating number 6, first frame 7, second frame 8.

Description of the embodiments

Referring to fig. 1-4, the solar cell frame disclosed by the utility model is in a rectangular structure, and is formed by splicing two symmetrically arranged first frames 7 and two symmetrically arranged second frames 8 end to end through corner brackets 6, wherein the end parts of the first frames 7 and the second frames 8 are cut into 45-degree oblique angles which are spliced with each other, and the end parts of the first frames 7 and the second frames 8 are cut once, so that the production and processing technology is simplified;

the installation directions of the vision panel components are different, if the long frames are installed on the solar bracket, the long frames are the first frames 7, the short frames are the second frames 8, and if the short frames are installed on the solar bracket, the short frames are the first frames 7, and the long frames are the second frames 8;

the first frame 7 and the second frame 8 both comprise a supporting body 1 with a rectangular cross section, the top of the supporting body 1 is provided with a cantilever structure 2, and a clamping part is formed between the cantilever structure and the top surface of the supporting body 1; the bottom surface of the support body 1 of the first frame 7 is provided with a mounting plate 3, and a plurality of mounting connection holes are punched on the mounting plate 3 and are assembled and connected with the solar bracket; the mounting plate 3 is only arranged on the first frame 7 connected with the solar bracket, so that the overall weight of the frame is reduced, and the material cost is reduced;

two groups of symmetrically arranged glue containing cavities 4 are respectively arranged at symmetrical inner wall positions of the clamping part, namely the bottom surface of the cantilever structure 2 and the top surface of the support body 1; the sealant extruded from the upper surface and the lower surface of the edge of the panel is fully contained, so that the double-sided sealability of the panel is improved, and meanwhile, the residual sealant cleaning work is simplified, and the panel is particularly suitable for double-glass double-sided power generation panels;

the inner side surfaces of the end supporting bodies 1 of the first frame 7 and the second frame 8 are provided with fastening anchor points 5; the three fastening anchor points 5 are distributed in a delta shape, the front row is one, the rear row is two, the total length of the sawtooth area according to the corner code 6 is L, and the distance between the front row of one fastening anchor point 5 and the rear row of two fastening anchor points 5 is not less than 0.8L. The four rectangular distributed fastening anchor points 5 of the original process are adjusted to be three-delta-shaped, the distance between the front row fastening anchor points and the rear row fastening anchor points is pulled, the stress state of the side wall of the frame support body 1 after stamping is improved, the occurrence of stamping cracks is reduced, the yield is improved, and the production cost is reduced.

In addition: it should be noted that the above embodiment is only one of the optimization schemes of this patent, and any modification or improvement made by those skilled in the art according to the above concepts is within the scope of this patent.

Claims

1. The utility model provides a solar cell frame, is formed by first frame (7) that two symmetries set up and second frame (8) that two symmetries set up through angle sign indicating number (6) head and the tail concatenation, its characterized in that: the first frame (7) and the second frame (8) both comprise a support body (1) with a rectangular cross section, the top of the support body (1) is provided with a cantilever structure (2), and a clamping part is formed between the cantilever structure and the top surface of the support body (1); the bottom surface of the support body (1) of the first frame (7) is provided with a mounting plate (3); and glue containing cavities (4) are respectively arranged at symmetrical inner wall positions of the clamping part, namely the bottom surface of the cantilever structure (2) and the top surface of the support body (1).

2. The solar cell bezel of claim 1, wherein: the clamping part comprises two groups of symmetrically arranged glue containing cavities (4).

3. The solar cell bezel of claim 1, wherein: the ends of the first frame (7) and the second frame (8) are cut into 45-degree oblique angles which are spliced with each other.

4. The solar cell bezel of claim 1, wherein: the inner side surfaces of the end supporting bodies (1) of the first frame (7) and the second frame (8) are provided with fastening anchor points (5).

5. The solar cell bezel of claim 4, wherein: three fastening anchor points (5) are distributed in a delta shape.

6. The solar cell bezel of claim 4, wherein: the total length of the saw teeth of the corner connector (6) is L, and the front-back row distance of the fastening anchor point (5) is not less than 0.8L.