Connecting structure of composite material frame

Abstract

The utility model discloses a connecting structure of a composite material frame, which comprises a frame and a corner brace, the frame is a square tube structure, a square cavity is arranged in the square tube structure, the corner brace is a right-angle corner brace, the corner brace is provided with two right-angle sides, the inner side of each right-angle side is provided with a row of inclined teeth which are inclined inwards, and the inner side of each right-angle side is provided with a row of inclined teeth which are inclined inwards. The thickness of each right-angle side is larger than the inner width of the corresponding square cavity, in the state that the two right-angle sides of the corner connector are inserted into the square cavities of the two frames respectively, the outer side edges of the right-angle sides are clamped to the outer walls of the square cavities, and the oblique teeth on the right-angle sides are clamped to the inner walls of the square cavities.

Description

Technical Field

[0001] The utility model belongs to the field of solar cells, in particular to a connection structure of a composite material frame. Background Art

[0002] The connection of the frame of the existing solar cell assembly is usually connected into a frame (square frame) by inserting angle brackets at the two ends of the four frames. The angle brackets are provided with barbs, and the frame is provided with a square cavity, and the square cavity is provided with a bayonet. When the angle bracket is inserted into the square cavity of the frame, the barbs on the angle brackets are just caught on the bayonet, so that the frame profile is connected to the frame through the angle brackets to fix the frame. However, this fixing method has the following problems: first, a bayonet is required in the square cavity of the frame, so the processing technology is complicated and the processing cost is high. Second, when the concave-convex between the bayonet in the frame and the angle bracket barb are matched, the matching dimensional accuracy between the bayonet and the barb is high. If the dimensional accuracy is not enough, it is easy to cause hidden dangers such as the snap-fit ​​(matching) is not in place or the concave-convex is not locked, resulting in a loose fixing. Summary of the invention

[0003] The utility model aims to provide a connection structure of a composite material frame.

[0004] The utility model aims to solve the problems that the existing solar panel frame processing technology is complicated and the processing cost is high, and the snap-in in the frame is easy to produce misalignment or the concave and convex are not locked when snapping with the corner code, resulting in loose fixing.

[0005] The technical scheme adopted by the utility model is: a connection structure of a composite material frame, comprising a frame and an angle code, wherein the frame is a square tube structure, a square cavity is arranged in the square tube structure, the angle code is a right-angled angle code, the angle code has two right-angled sides, a row of inwardly inclined oblique teeth is arranged on the inner side of each right-angled side, a thickness D of the right-angled side is greater than the inner width of the square cavity, and when the two right-angled sides of the angle code are respectively inserted into the square cavities of two frames, the outer sides of the right-angled sides are clamped on the outer wall of the square cavity, and the oblique teeth on the right-angled sides are clamped on the inner wall of the square cavity.

[0006] Preferably, a row of oblique teeth on the right-angled side has at least two teeth, and the row of oblique teeth are parallel to each other and arranged at intervals.

[0007] Preferably, the thickness D of the right-angled side includes the width of the bevel teeth.

[0008] Preferably, a fixed edge is provided on one side of the frame.

[0009] Preferably, the helical teeth are inverted teeth.

[0010] The beneficial effects of the utility model are as follows: when the frame of the utility model is fixed by the corner code to form a frame (a square frame), as long as the corner code is directly inserted into the square cavity of the frame, the oblique teeth of the corner code are closely attached to the inner wall of the square cavity of the frame to form a triangular inverted tooth structure, and the tensile force that meets the requirements is generated. At this time, the frame is framed by the corner code and firmly fixed to each other. Compared with the existing frame with a bayonet, firstly, the frame of the utility model does not need to be provided with a bayonet, so the processing technology is simple and the production cost is low; secondly, there is no matching size accuracy requirement between the frame of the utility model and the corner code; thirdly, the diagonal quality of the frame is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure when the ends of the frame are connected and fixed by angle brackets.

[0012] Figure 2 This is a schematic diagram of the structure of the angle code.

[0013] Figure 3 It is a schematic diagram of the structure of the frame end. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] As shown in the figure, a composite material frame connection structure described in the utility model includes a frame 1, a frame 3 and a corner bracket 2. The frame 1 is a square tube structure, and a square cavity 12 is arranged inside the square tube structure; the structure of the frame 3 is the same as that of the frame 1, and is also a square tube structure, and a square cavity 32 is also arranged inside the square tube structure. The corner bracket 2 is a right-angled corner bracket, and the corner bracket 2 has a right-angled side 6 and a right-angled side 8. A row of inwardly inclined bevel teeth 7 is arranged inside the right-angled side 6, and a row of inwardly inclined bevel teeth 9 is arranged inside the right-angled side 8. The thickness D of the right-angled side is greater than the inner width W of the square cavity. When the right-angled side 6 and the right-angled side 8 of the corner bracket 2 are respectively inserted into the square cavity 12 of the frame 1 and the square cavity 32 of the frame 3, the outer side of the right-angled side 6 is clamped to the outer wall 11 of the square cavity 12, and the bevel teeth 7 on the right-angled side 6 are clamped to the inner wall 13 of the square cavity 12. The outer side of the right-angled side 8 is clamped to the outer wall 31 of the square cavity 32 , and the oblique teeth 9 on the right-angled side 8 are clamped to the inner wall 33 of the square cavity 32 .

[0016] The row of bevel teeth on the right-angled side 6 is 4 teeth, which are parallel to each other and arranged at intervals or arranged in other suitable shapes. The thickness of the right-angled side 6 includes the width of the bevel teeth 7. The row of bevel teeth on the right-angled side 8 is 4 teeth, which are parallel to each other and arranged at intervals or arranged in other suitable shapes. The thickness D of the right-angled side 8 includes the width of the bevel teeth 9.

[0017] One side of the frame 1 is provided with a fixed edge 5. One side of the frame 3 is provided with a fixed edge 4. The oblique teeth are inverted teeth.

[0018] The frame (profile) 1 and frame (profile) 3 described in the utility model are made of composite materials, and the composite materials are made of glass or other inorganic fibers and thermosetting resin (polyurethane resin, epoxy resin, unsaturated resin, etc.) through pultrusion. The corner bracket 2 described in the utility model is an aluminum corner bracket.

Claims

1. A composite frame connection structure, comprising a frame and a corner bracket, wherein the frame is a square tube structure, wherein a square cavity is provided in the square tube structure, wherein the corner bracket is a right-angle bracket, wherein the corner bracket has two right-angle sides, and wherein the A row of inwardly inclined bevel teeth is provided on the inner side of each right-angled side, and the thickness D of the right-angled side is greater than the inner width of the square cavity. When the two right-angled sides of the corner code are respectively inserted into the square cavities of the two frame frames, the outer sides of the right-angled sides are clamped on the outer wall of the square cavity, and the bevel teeth on the right-angled sides are clamped on the inner wall of the square cavity.

2. A composite material frame connection structure according to claim 1, characterized in that A row of oblique teeth on the right-angled side has at least two teeth.

3. A composite material frame connection structure according to claim 2, characterized in that The row of oblique teeth are parallel to each other and arranged at intervals.

4. The composite material frame connection structure according to claim 1, characterized in that The thickness D of the right-angled side includes the width of the bevel teeth.

5. The composite material frame connection structure according to claim 1, characterized in that One side of the frame is provided with a fixed edge.

6. The composite material frame connection structure according to claim 1, characterized in that The helical teeth are inverted teeth.

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