Corner connector fixing structure of solar cell composite material frame
By designing the spur and helical tooth structures on the frame and corner codes of the solar cell module, and using the extrusion to achieve the tightening of the frame, the problem of complex frame connection process and unsolid fixation in the prior art is solved, and low-cost and efficient frame fixation is achieved.
Patent Information
- Application Number
- CN202420557154.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-03-21
AI Technical Summary
The connection process of existing solar cell modules is complex, the processing cost is high, and the matching dimensional accuracy requirements between the bayonet and the angle code are high, which can easily lead to the hidden danger of unstable fixation.
The corner code fixing structure of the frame of the solar cell composite material is adopted. By setting the straight teeth at the right angle of the corner code and setting the corresponding extrusion action in the square cavity of the frame, the straight teeth are deformed into helical teeth and fastened to the cavity wall of the frame to achieve fixing.
The processing technology of the border is simplified, production costs are reduced, the problem of high dimensional accuracy is avoided, and the fixing quality and stability of the border is improved.
Smart Images
Figure CN222966946U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of solar cells, and particularly relates to a corner code fixing structure for a composite frame of a solar cell. Background Art
[0002] The connection of the frames of existing solar cell modules is usually achieved by inserting corner codes at both ends of four frames respectively to form a frame (square frame) for fixing. The corner code is provided with barbs, and a square cavity is provided inside the frame. A bayonet is provided inside the square cavity. When the corner code is inserted into the square cavity of the frame, the barbs on the corner code are just stuck on the bayonet, so as to achieve the purpose of connecting and fixing the frame profiles through the corner code. However, this fixing method has the following problems: First, a bayonet needs to be set in the square cavity of the frame, so the processing technology is complex and the processing cost is high. Second, when the bayonet inside the frame and the barb of the corner code are in concave-convex matching, the dimensional accuracy requirements for the cooperation between the bayonet and the barb are high. If the dimensional accuracy is not enough, problems such as non-seam or non-locking of the concave-convex parts are likely to occur, resulting in potential hazards such as insecure fixing at the fixing point. Summary of the Invention
[0003] The purpose of the utility model is to provide a corner code fixing structure for a composite frame of a solar cell.
[0004] The utility model aims to solve the problems of complex processing technology and high processing cost of the existing solar cell module frame, and the problems such as non-seam or non-locking of the concave-convex parts are likely to occur when the bayonet inside the frame is engaged with the corner code, resulting in insecure fixing at the fixing point.
[0005] The technical solution adopted by the utility model is: a corner code fixing structure for a composite frame of a solar cell, including a frame and a corner code. The frame is of a square tube structure, and a square cavity is provided inside the square tube structure. The corner code is a right-angle corner code, and the corner code has two right-angle sides. A row of straight teeth is provided on the inner side of each right-angle side. The thickness D of the right-angle side is greater than the inner width of the square cavity. When the two right-angle sides of the corner code are respectively inserted into the square cavities of two frames, the outer side of the right-angle side is clamped against the outer wall of the square cavity, and the straight teeth on the right-angle side are deformed into inwardly inclined teeth and then clamped against the inner wall of the square cavity.
[0006] Preferably, there are at least 2 teeth in a row of the straight teeth on the right-angle side and they are arranged parallel to each other.
[0007] Preferably, the thickness D of the right-angle side includes the width of the straight teeth.
[0008] Preferably, a fixed edge is provided on one side of the frame.
[0009] The beneficial effects of the present utility model are as follows: When the corner fitting of the present utility model is used for fixing the frame (profile), as long as the corner fitting is directly inserted into the square cavity of the frame. During the insertion process, due to the extrusion effect between the straight teeth of the corner fitting and the wall of the square cavity, the straight teeth on the right-angle side of the corner fitting are deformed into inwardly inclined teeth and then clamped on the wall of the square cavity of the frame, firmly fixing the corner fitting to the frame. Moreover, using the corner fitting of the present utility model improves the quality of the frame corners. Compared with the existing frame with a bayonet inside, firstly, there is no need to set a bayonet inside the frame of the present utility model, so the processing technology is simple and the production cost is low; secondly, there is no requirement for the dimensional accuracy of the fit between the frame and the corner fitting of the present utility model, so the framing process of connecting the frame of the present utility model with the corner fitting into a square frame is simple and efficient. Thirdly, the quality of the frame corners is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 FIG. is a schematic structural view when the end of the frame is connected and fixed through a corner fitting.
[0011] Figure 2 FIG. is a schematic structural view of the corner fitting.
[0012] Figure 3 FIG. is a schematic structural view of the end of the frame. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0013] The present utility model will be further described below in conjunction with the drawings and specific embodiments.
[0014] As shown in the figure, a corner fitting fixing structure for a solar cell composite frame according to the present utility model includes a frame 1, a frame 3, and a corner fitting 2. The frame 1 has a square tube structure, and a square cavity 12 is provided inside the square tube structure; the structure of the frame 3 is the same as that of the frame 1, also having a square tube structure, and a square cavity 32 is also provided inside the square tube structure. The corner fitting 2 is a right-angle corner fitting, and the corner fitting 2 has a right-angle side 6 and a right-angle side 8. A row of straight teeth 7 is provided inside the right-angle side 6, and a row of straight teeth 9 is also provided inside the right-angle side 8. The thickness D of the right-angle side 8 is greater than the inner width W of the square cavity 32, and the thickness of the right-angle side 6 is greater than the inner width of the square cavity 12.
[0015] In a state where the right-angle sides 6 and 8 of the corner fitting 2 are respectively inserted into the square cavities 12 of the frame 1 and the square cavity 32 of the frame 3, the outer side of the right-angle side 6 is clamped against the outer wall 11 of the square cavity 12. During the insertion process of the straight teeth 7 on the right-angle side 6, due to the extrusion between the corner fitting straight teeth 7 and the inner wall 13 of the square cavity, the straight teeth 7 are deformed into inwardly inclined teeth and then clamped on the inner wall 13 of the square cavity. The outer side of the right-angle side 8 is clamped against the outer wall 31 of the square cavity 32. During the insertion process of the straight teeth 9 on the right-angle side 8, due to the extrusion between the corner fitting straight teeth 9 and the inner wall 33 of the square cavity, the straight teeth 9 are deformed into inwardly inclined teeth and then clamped on the inner wall 33 of the square cavity.
[0016] One row of the inclined teeth on the right-angle side 6 has 4 teeth, which are arranged parallel to each other and at intervals or in other suitable shapes. The thickness of the right-angle side 6 includes the width of the straight teeth 9. One row of the inclined teeth on the right-angle side 8 has 4 teeth, which are arranged parallel to each other and at intervals or in other suitable shapes. The thickness D of the right-angle side 8 includes the width of the straight teeth 9.
[0017] One side of the frame 1 is provided with a fixed side 5. One side of the frame 3 is provided with a fixed side 4. The inclined teeth are reverse teeth.
[0018] The frames (profiles) 1 and 3 of the present utility model are made of composite materials. The composite materials are made by a pultrusion process from glass or other inorganic fibers and thermosetting resins (such as polyurethane resin, epoxy resin, unsaturated resin, etc.). The corner fitting 2 of the present utility model is an aluminum corner fitting.
Claims
1. A corner bracket fixing structure of a solar cell composite material frame, comprising a frame and a corner bracket, wherein the frame is a square tube structure, a square cavity is arranged inside the square tube structure, the corner bracket is a right-angled corner bracket, and the corner bracket has two right-angled sides, characterized in that A row of straight teeth is provided on the inner side of each right-angled edge, and the thickness D of the right-angled edge is greater than the inner width of the square cavity. When the two right-angled edges of the corner code are respectively inserted into the square cavities of the two frames, the outer sides of the right-angled edges are clamped on the outer wall of the square cavity, and the straight teeth on the right-angled edges are deformed into inwardly inclined teeth and then clamped on the inner wall of the square cavity.
2. The corner code fixing structure of the solar cell composite material frame according to claim 1, characterized in that The straight teeth in a row of right-angled sides have at least four teeth and are arranged parallel to each other.
3. The corner code fixing structure of the composite material frame of solar cell according to claim 1, characterized in that The thickness D of the right angle side includes the width of the straight teeth.
4. The corner code fixing structure of the composite material frame of solar cell according to claim 1, characterized in that One side of the frame is provided with a fixed edge.