Connecting corner brace and composite material frame connecting structure

Abstract

The utility model discloses a connecting corner brace and a composite material frame connecting structure. The connecting corner brace comprises a first connecting arm and a second connecting arm, and the first connecting arm and the second connecting arm intersect. The first connecting arm is provided with a first connecting surface, and first connecting teeth are arranged on the first connecting surface; the connecting face, making contact with the composite material frame cavity, of the second connecting arm is of a plane structure. When the connecting corner brace is used for fixing the composite material frame structure, the main body structure of the composite material frame does not need to be damaged, and the mounting efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaics, and particularly relates to a connecting structure for connecting an angle bracket and a composite material frame. Background Art

[0002] Photovoltaic frame profiles produced using a composite pultrusion process have weak lateral strength, and the strength at the perforated locations is significantly reduced after the profile is punched. Existing frame connection methods typically involve an interference fit between the corner brackets and the profile cavity, or mechanical connection using bosses on the corner brackets. Interference fits are highly random, and even slight variations in the corner bracket or frame cavity dimensions can cause the frame to detach after connection. When connecting through punching, variations in hole diameter or position can create gaps in the frame after connection, or prevent the corner bracket bosses from retracting into the holes. Utility Model Content

[0003] Purpose of the utility model: To solve the problems of the prior art, the present application provides a connection structure between a corner bracket and a composite material frame. The connection corner bracket of the utility model does not need to destroy the main structure of the photovoltaic material frame during installation and improves installation efficiency.

[0004] Technical solution: An embodiment of the present application provides a connecting angle code, which includes a first connecting arm and a second connecting arm, wherein the first connecting arm and the second connecting arm intersect; the first connecting arm has a first connecting surface, and a first connecting tooth is provided on the first connecting surface; the connecting surface of the second connecting arm in contact with the composite material frame cavity is a planar structure.

[0005] In some embodiments, the ends of the first connecting arm and the second connecting arm of the connecting angle code are both provided with a first guide portion, and the cross-section of the first guide portion is smaller than the cross-section of the composite material frame cavity.

[0006] In some embodiments, the first connecting arm is a hollow structure, and the second connecting arm is a hollow structure, and a first reinforcing rib is provided at the intersection of the first connecting arm and the second connecting arm.

[0007] In some embodiments, the connecting angle code has a first direction and a second direction, a second reinforcing rib is provided inside the first connecting arm, the second reinforcing rib extends along the second direction, and the second reinforcing rib is arranged at intervals inside the first connecting arm.

[0008] In some embodiments, a third reinforcing rib is disposed inside the second connecting arm, the third reinforcing rib extends along the first direction, and the third reinforcing rib is disposed at intervals inside the second connecting arm.

[0009] In some embodiments, the first connecting tooth has a third connecting surface; the bottom end of the third connecting surface to the top end of the third connecting surface is inclined toward the second connecting arm.

[0010] In some embodiments, the cross-section of the first connecting tooth is a trapezoidal structure, and the cross-section of the first connecting tooth gradually decreases from the bottom end of the first connecting tooth to the top end of the first connecting tooth.

[0011] In some embodiments, the first connecting tooth has a fourth connecting surface, and the fourth connecting surface is arranged perpendicular to the extension direction of the first connecting arm.

[0012] A composite material frame connection structure is also provided in an embodiment of the present application, and the composite material frame connection structure includes the above-mentioned connecting angle code, and the composite material frame connection structure also includes a sleeve structure, and the sleeve structure is arranged in the composite material frame cavity; the sleeve structure includes a connecting part, and the connecting part includes a first connecting part and a second connecting part arranged on both sides of the first connecting part, and the first connecting part is provided with a second connecting tooth, and the second connecting tooth is engaged with the first connecting tooth.

[0013] In some embodiments, the insert structure includes a second guide portion, one end of the second guide portion is connected to the connecting portion, and a cross-section of the second guide portion away from the connecting portion is smaller than a cross-section of the composite material frame cavity.

[0014] In some embodiments, the insert structure has a first central axis, and the second connecting teeth are staggered along the direction of the first central axis.

[0015] Beneficial Effects: This application provides a structure for connecting a corner bracket and a composite frame. The corner bracket includes a first connecting arm and a second connecting arm, which intersect each other. The first connecting arm has a first connecting surface, on which a first connecting tooth is disposed. The connecting surface of the second connecting arm that contacts the composite frame cavity is a planar structure. This corner bracket secures the composite frame structure without damaging the main structure of the composite frame and improves installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the angle code connection in the embodiment of the present application;

[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the middle part A;

[0018] Figure 3 This is a structural diagram of the sleeve structure in the embodiment of the present application;

[0019] Figure 4 This is a cross-sectional view of the composite frame material in an embodiment of the present application;

[0020] Figure 5 This is a schematic diagram of the installation structure of the connecting mechanism and the composite frame material in the embodiment of the present application;

[0021] Figure 6 This is a schematic diagram of the structure of the composite material photovoltaic frame after installation in an embodiment of the present application. DETAILED DESCRIPTION

[0022] The structure of the present application is further described below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, an embodiment of the present application provides a connecting angle code 100 , which includes at least two connecting arms, and at least one connecting arm is provided with a first connecting tooth 111 .

[0024] In some specific embodiments, the connecting angle bracket 100 includes a first connecting arm 110 and a second connecting arm 120. The connecting angle bracket 100 has a first direction X and a second direction Y. The first direction X and the second direction Y are perpendicular to each other. The term "perpendicular" in this application may refer to an absolutely perpendicular or approximately perpendicular arrangement. In this embodiment, the first connecting arm 110 extends along the first direction X, and the second connecting arm 120 extends along the second direction Y. The first connecting arm 110 and the second connecting arm 120 intersect to form an L-shape.

[0025] In some embodiments, the first connecting arm 110 has a first connecting surface 101, and the first connecting tooth 111 is provided on the first connecting surface 101. At the same time, the second connecting arm 120 has a second connecting surface 102, and the second connecting surface 102 is in contact with the cavity of the composite material frame, and the second connecting surface 102 is a planar structure. The present application improves the installation efficiency of the connecting angle code of the present application by providing the first connecting tooth 111 on the first connecting arm 110 and not providing the connecting tooth structure on the second connecting arm 120. As a specific application example of the connecting angle code 100 of the present application, the second connecting arm 120 of the connecting angle code 100 described in the embodiment of the present application is first fixed to the inside of the cavity of the composite material frame by glue to complete the pre-installation. The structure formed by the pre-installation can be directly driven into the cavity of another frame at the implementation site, and the installation of the composite material frame structure can be completed in one step at the installation site.

[0026] In some embodiments, a first guide portion 130 is provided at the end of the first connecting arm 110 and the second connecting arm 120. The cross-section of the first guide portion 130 is smaller than the cross-section of the composite material frame cavity, which facilitates the insertion of the first connecting arm 110 and the second connecting arm 120 into the composite material frame cavity.

[0027] In some embodiments, the first connecting arm 110 and the second connecting arm 120 of the present application are hollow structures, and a first reinforcing rib 103 is provided at the intersection of the first connecting arm 110 and the second connecting arm 120. The first reinforcing rib 103 is used to increase the connection strength at the corner of the connecting angle code 100.

[0028] In some embodiments, to further increase the strength of the first connecting arm 110 and the second connecting arm 120, the first connecting arm 110 is provided with a second reinforcing rib 104. The second reinforcing rib 104 extends along the second direction Y and is spaced apart inside the first connecting arm 110 to strengthen the strength of the first connecting arm 110. Similarly, the second connecting arm 120 is provided with a third reinforcing rib 105. The third reinforcing rib 105 extends along the first direction X and is spaced apart inside the second connecting arm 120 to strengthen the strength of the second connecting arm 120. In the present application, the connecting angle bracket 100 adopts a hollow structure combined with a reinforcing rib structure, which reduces the overall structural weight while also ensuring the connection strength of the connecting angle bracket 100.

[0029] When the first connecting arm 110 of the present application is provided with a first connecting tooth 111, and the second connecting arm 120 is not provided with a connecting tooth structure, the second connecting arm 120 is installed with the frame by glue, and the first connecting arm 110 is installed with the frame by the first connecting tooth 111. At this time, a matching connecting structure can be provided inside the cavity of the frame material in which the first connecting arm 110 is installed.

[0030] In some embodiments, the present application further optimizes the structure of the first connecting tooth 111, such as Figure 1 and Figure 2 As shown, the first connecting tooth 111 in the embodiment of the present application has a third connecting surface 112; from the bottom end of the third connecting surface 112 to the top end of the third connecting surface 112, the third connecting surface 112 is inclined toward the second connecting arm 120, that is, the third connecting surface 112 of the first connecting tooth 111 is a sloped structure, and the third connecting surface 112 is inclined toward the direction of the second connecting arm 120, which facilitates the first connecting arm 110 to be driven into the composite material frame cavity, facilitates its insertion into the cavity, and has reverse pull-out resistance, reduces the insertion resistance, and increases the connection stability.

[0031] In some embodiments, the cross-section (XY cross-section) of the first connecting tooth 111 is a trapezoidal structure, and the cross-section of the first connecting tooth 111 gradually decreases from the bottom end of the first connecting tooth 111 to the top end of the first connecting tooth 111. In the embodiment of the present application, the first connecting tooth 111 extends along the third direction Z on the first connecting arm 110. When the connecting angle code 100 is driven into the composite material frame cavity, the top surface of the first connecting tooth 111 will directly contact the inner wall of the cavity, generating resistance. In the embodiment of the present application, the first connecting tooth 111 is set to have a trapezoidal cross-section, which reduces the area of ​​the top surface of the first connecting tooth 111, thereby reducing the insertion resistance of the connecting angle code 100. Because the third connecting surface 112 of the first connecting tooth 111 is tilted and the trapezoidal structure (the cross-section gradually increases from top to bottom), the connection strength of the first connecting tooth 111 is guaranteed, and the insertion resistance of the connecting angle code 100 is reduced, and its installation strength is increased, that is, when the connecting angle code 100 is pulled out, greater resistance is required.

[0032] In some embodiments, the connecting tooth 111 has a fourth connecting surface 113, the fourth connecting surface 113 is perpendicular to the first direction X, and the cross section formed by the first connecting tooth 111 on the XY cross section is a right-angled trapezoidal structure, see Figure 3 In the embodiment of the present application, the fourth connecting surface 113 of the connecting tooth 111 is vertically arranged, which ensures the structural strength of the first connecting tooth 111 to the greatest extent, and ensures the clamping strength between the first connecting tooth 111 and the second connecting tooth 201 of the inserting structure 200 and the installation strength and installation stability of the connecting angle code 100.

[0033] In order to further improve the installation stability and convenience of the connecting angle code 100, the present application adds a sleeve structure 200, and installs the sleeve structure 200 inside the composite material frame cavity, thereby improving the installation strength of the connecting angle code 100 and reducing the installation difficulty of the connecting angle code 100.

[0034] like Figure 3 As shown, the insert structure 200 in the embodiment of the present application includes a connecting portion 210, which includes a first connecting portion 211 and second connecting portions 212 disposed on either side of the first connecting portion 211. The first connecting portion 211 and the second connecting portions 212 disposed on either side form a C-shaped frame structure that engages with the outer periphery of the first connecting arm 110. The second connecting teeth 201 are disposed on the first connecting portion 211 and engage with the first connecting teeth 111 to secure the connecting angle bracket 100 to the interior of the composite frame.

[0035] In some embodiments, the second connecting teeth 201 in the embodiments of the present application are staggered along the direction of extension of the first central axis O1. In other embodiments, one end of each second connecting tooth 201 extends to the other side of the first central axis O1, that is, the positive projection of each second connecting tooth 201 on the first connecting portion 211 intersects with the first central axis O1. The staggered second connecting teeth 201 can increase the connection strength between the insert structure 200 and the connecting angle code 100 while simplifying the structure. When the second connecting teeth 201 are staggered along the direction of the first central axis O1, and one end thereof extends to the first central axis O1, the second connecting teeth 201 can be staggered along the direction of the first central axis O1. 1_ On the other side, the connection strength between the angle bracket 100 and the inserting structure 200 can be further increased.

[0036] In some embodiments, the insert structure 200 includes a second guide portion 220. One end of the second guide portion 220 is connected to the connecting portion 210. The second guide portion 220 is retracted inward, and the cross-section of the second guide portion 220 is smaller than the cross-section of the composite frame cavity. This smaller cross-section of the second guide portion 220 serves as a guide when inserting the connecting angle bracket 100 into the cavity, thereby increasing the installation efficiency of the connecting angle bracket 100.

[0037] In some embodiments, the second guide portion 220 includes a first guide element 221 and a second guide element 222, wherein one end of the first guide element 221 is connected to the first connecting portion 211, and one end of the second guide element 222 is connected to the second connecting portion 212. Figure 3 As shown, the sleeve structure 200 has a first central axis O1, and the second guide element 222 extends toward the first central axis O1, forming a constricted structure. In a specific embodiment, the first guide element 221 and the second guide element 222 are metal connecting pieces. This structure is low-cost and simple to manufacture, and can be integrally formed with the connecting portion 210.

[0038] In some embodiments, the present application further optimizes the structure of the second connecting tooth 201. Figure 3 As shown, the insert structure 200 has a first end 202 and a second end 203, and the bottom end of the second connecting tooth 201 extends to the top end of the second connecting tooth 201 toward the second end 202. The bottom end of the second connecting tooth 201 in this application refers to the place where it is connected to the first connecting portion 211, and the top end of the second connecting tooth 201 refers to the side opposite to the bottom end of the second connecting tooth 201. In this embodiment of the application, the second connecting tooth 201 forms a slope structure. Figure 4 As shown, the connecting angle code 100 is inserted into the composite frame cavity along the first direction X. The inclined structure of the second connecting tooth 201 reduces the insertion resistance of the connecting angle code 100 and increases the removal resistance of the connecting angle code 100, thereby reducing the installation difficulty and increasing the connection stability of the structure.

[0039] like Figure 4 As shown, the composite material frame 3 in the embodiment of the present application has a cavity 300, and the composite material frame connection structure 1 formed by connecting the corner code 100 and the insert structure 200 is installed in the cavity 300 of the composite material photovoltaic frame for connecting the composite material photovoltaic frame.

[0040] In some embodiments, the inner wall of the composite frame profile of the present application is provided with fourth reinforcing ribs 301 to increase the strength of the composite frame. In specific embodiments, the inner wall of the cavity 300 may be provided with a single or multiple fourth reinforcing ribs 301 extending along the length of the frame profile, and the fourth reinforcing ribs 301 may be provided on any inner surface of the frame cavity. The fourth reinforcing ribs 301 in the embodiments of the present application may be formed through a pultrusion process.

[0041] In some embodiments, when both the first connecting arm 110 and the second connecting arm 120 are provided with a connecting tooth structure, or when the first connecting arm 110 is provided with a first connecting tooth 111 and the second connecting arm 120 is not provided with a connecting tooth structure, a fourth reinforcing rib 301 may be provided inside the two frame cavities connected to the connecting angle bracket 100. Alternatively, the frame profile to which the first connecting arm 110 is attached is provided with the fourth reinforcing rib 301, while the frame profile to which the second connecting arm 120 is attached is not provided with the fourth reinforcing rib 301.

[0042] In some embodiments, the first connecting arm 110 of the present application is provided with a first connecting tooth 111, and the connecting surface of the second connecting arm 120 is a planar structure. At this time, the frame surface connected to the second connecting arm 120 can be provided with a fourth reinforcing rib 301 or not.

[0043] In some embodiments, the fourth reinforcing rib 301 of the present application is arranged on two opposite sides of the frame cavity, which can increase the strength of the frame, and the inner wall of the cavity of the profile retains two planar structures, increasing the connection strength of the connecting arm or the sleeve structure 200 connected to the cavity by glue.

[0044] like Figure 5 and Figure 6 As shown, the composite frame profile of the present application includes a first frame 310 and a second frame 320. In a specific embodiment, the first frame 310 is a long frame and the second frame 320 is a short frame structure. The connecting mechanism 1 of the present application is installed in the following manner:

[0045] (a) Apply glue to the inner surface of the cavity of the second frame 320, insert the second connecting arm 120 of the connecting angle bracket 100 into the cavity of the second frame 320, and wait for the glue to solidify;

[0046] (b) Apply glue to the inner surface of the cavity of the first frame 310, then insert the C-shaped insert structure 200 with the second connecting teeth 201 into the cavity of the first frame 310. After the glue solidifies and the insert structure 200 is firmly bonded to the first frame 310, the combination of the second frame 320 and the connecting angle bracket 100 obtained in step (a) is inserted into the insert structure 200 that has already solidified with the first frame 310. The first connecting teeth 111 provided on the first connecting arm 110 align with the second connecting teeth 201 of the insert structure 200 to mechanically connect and secure them. The connecting angle bracket 100 of the present application can withstand a pull-out force of 200N and will not fall off the frame.

[0047] After the composite material photovoltaic frame of the embodiment of the present application is connected, the formed frame connection structure is combined to form a frame for fixing the solar panel, which is used to fix the photovoltaic cell. The length of the frame can be customized according to the size of the solar panel.

[0048] The photovoltaic frame in this application can be quickly assembled when used in conjunction with the connecting angle code. During the implementation process, there is no need to drill holes in the frame to destroy the main structure of the frame profile. The fixing of the sleeve structure and the frame profile is in the form of gluing, which can be achieved through automated equipment, thereby improving assembly efficiency.

Claims

1. A connection angle code, characterized in that: The connecting angle code (100) comprises a first connecting arm (110) and a second connecting arm (120), wherein the first connecting arm (110) and the second connecting arm (120) intersect; The first connecting arm (110) has a first connecting surface (101), and a first connecting tooth (111) is provided on the first connecting surface (101); the cross section of the first connecting tooth (111) is a trapezoidal structure, and the cross section of the first connecting tooth (111) gradually decreases from the bottom end of the first connecting tooth (111) to the top end of the first connecting tooth (111); The connection surface where the second connecting arm (120) contacts the composite material frame cavity is a planar structure.

2. The connection angle code according to claim 1, characterized in that: The ends of the first connecting arm (110) and the second connecting arm (120) of the connecting angle code (100) are both provided with a first guide portion (130), and the cross section of the first guide portion (130) is smaller than the cross section of the composite material frame cavity.

3. The connection angle code according to claim 1, characterized in that: The first connecting arm (110) is a hollow structure, and the second connecting arm (120) is a hollow structure, and a first reinforcing rib (103) is provided at the intersection of the first connecting arm (110) and the second connecting arm (120).

4. The connection angle code according to claim 3, characterized in that: The connecting angle code (100) has a first direction (X) and a second direction (Y), a second reinforcing rib (104) is provided inside the first connecting arm (110), the second reinforcing rib (104) extends along the second direction (Y), and the second reinforcing rib (104) is arranged at intervals inside the first connecting arm (110).

5. The connection angle code according to claim 4, characterized in that: A third reinforcing rib (105) is provided inside the second connecting arm (120), the third reinforcing rib (105) extending along the first direction (X), and the third reinforcing rib (105) is arranged at intervals inside the second connecting arm (120).

6. The connection angle code according to claim 1, characterized in that: The first connecting tooth (111) has a third connecting surface (112); the bottom end of the third connecting surface (112) to the top end of the third connecting surface (112) are inclined toward the second connecting arm (120).

7. The connection angle code according to claim 6, characterized in that: The first connecting tooth (111) has a fourth connecting surface (113), and the fourth connecting surface (113) is arranged perpendicular to the extension direction of the first connecting arm (110).

8. A composite material frame connection structure, characterized in that: The composite material frame connection structure (1) comprises a connection angle code (100), and the composite material frame connection structure (1) further comprises a sleeve structure (200), wherein the sleeve structure (200) is arranged in a composite material frame cavity; the sleeve structure (200) comprises a connection portion (210), wherein the connection portion (210) comprises a first connection portion (211) and a second connection portion (212) arranged on both sides of the first connection portion (211), and the first connection portion (211) is provided with a second connection tooth (201); the connection angle code (100) comprises a first connection arm (110) and a second connection arm (120), wherein the first connection arm (110) and the second connection arm (120) intersect; the first connection arm (110) has a first connection surface (101), and the first connection surface (101) is provided with a first connection tooth (111); the connection surface of the second connection arm (120) in contact with the composite material frame cavity is a planar structure; and the second connection tooth (201) is engaged with the first connection tooth (111).

9. A composite material frame connection structure, characterized in that: The composite material frame connection structure (1) comprises a connection angle code (100) as claimed in any one of claims 1 to 7, and the composite material frame connection structure (1) further comprises a sleeve structure (200), wherein the sleeve structure (200) is arranged in a composite material frame cavity; the sleeve structure (200) comprises a connection portion (210), wherein the connection portion (210) comprises a first connection portion (211) and second connection portions (212) arranged on both sides of the first connection portion (211), wherein the first connection portion (211) is provided with a second connection tooth (201), and the second connection tooth (201) is engaged with the first connection tooth (111).

10. The composite material frame connection structure according to claim 9, characterized in that: The insert structure (200) comprises a second guide portion (220), one end of the second guide portion (220) is connected to the connecting portion (210), and a cross-section of the second guide portion (220) away from the connecting portion (210) is smaller than a cross-section of the composite material frame cavity.

11. The composite material frame connection structure according to claim 9, characterized in that: The insert structure (200) has a first central axis (O1), and the second connecting teeth (201) are staggered along the direction of the first central axis (O1).

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